# 50,000

(Redirected from 55440 (number))
 ← 49999 50000 50001 →
Cardinalfifty thousand
Ordinal50000th
(fifty thousandth)
Factorization24× 55
Greek numeral${\displaystyle {\stackrel {\epsilon }{\mathrm {M} }}}$
Roman numeralL
Binary11000011010100002
Ternary21121202123
Quaternary300311004
Quinary31000005
Senary10232526
Octal1415208
Duodecimal24B2812
Vigesimal650020
Base 3612KW36

50,000 (fifty thousand) is the natural number that comes after 49,999 and before 50,001. It is a round number.

## Selected numbers in the range 50,001–59,999

### 50,001 to 50,999

• 50,069 – 11 + 22 + 33 + 44 + 55 + 66
• 50,400highly composite number[1]
• 50,625 – 154, smallest fourth power that can be expressed as the sum of only five distinct fourth powers, palindromic in base 14 (1464114)
• 50,653 – 373, palindromic in base 6 (10303016)

### 51,000 to 51,999

• 51,076 – 2262, palindromic in base 15 (1020115)
• 51,641Markov number[2]
• 51,984 – 2282 = 373 + 113. the smallest square to the sum of only five distinct fourth powers.

### 57,000 to 57,999

• 57,121 – 2392, palindromic in base 14 (16B6114)

### 58,000 to 58,999

• 58,081 – 2412, palindromic in base 15 (1232115)
• 58,367 – smallest integer that cannot be expressed as a sum of fewer than 1079 tenth powers
• 58,786Catalan number[11]

### 59,000 to 59,999

• 59,049 – 310, 95
• 59,081Zeisel number[4]
• 59,319 – 393
• 59,536 – 2442, palindromic in base 11 (4080411)

## References

1. ^ "Sloane's A002182 : Highly composite numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
2. ^ "Sloane's A002559 : Markoff (or Markov) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
3. ^ "Sloane's A002997 : Carmichael numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
4. ^ a b "Sloane's A051015 : Zeisel numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
5. ^ "Sloane's A005188 : Armstrong (or Plus Perfect, or narcissistic) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
6. ^ "Sloane's A195163 : 1000-gonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
7. ^ "Sloane's A002201 : Superior highly composite numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
8. ^ "Sloane's A004490 : Colossally abundant numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
9. ^ "Sloane's A001599 : Harmonic or Ore numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
10. ^ "Sloane's A001190 : Wedderburn-Etherington numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.
11. ^ "Sloane's A00108 : Catalan numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-16.