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55,728

55,728 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Abundant Number Evil Number Happy Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number Smith Number

Properties

Parity
Even
Digit count
5
Digit sum
27
Digit product
2,800
Digital root
9
Palindrome
No
Bit width
16 bits
Reversed
82,755
Recamán's sequence
a(292,364) = 55,728
Square (n²)
3,105,609,984
Cube (n³)
173,069,433,188,352
Divisor count
50
σ(n) — sum of divisors
165,044
φ(n) — Euler's totient
18,144
Sum of prime factors
63

Primality

Prime factorization: 2 4 × 3 4 × 43

Nearest primes: 55,721 (−7) · 55,733 (+5)

Divisors & multiples

All divisors (50)
1 · 2 · 3 · 4 · 6 · 8 · 9 · 12 · 16 · 18 · 24 · 27 · 36 · 43 · 48 · 54 · 72 · 81 · 86 · 108 · 129 · 144 · 162 · 172 · 216 · 258 · 324 · 344 · 387 · 432 · 516 · 648 · 688 · 774 · 1032 · 1161 · 1296 · 1548 · 2064 · 2322 · 3096 · 3483 · 4644 · 6192 · 6966 · 9288 · 13932 · 18576 · 27864 (half) · 55728
Aliquot sum (sum of proper divisors): 109,316
Factor pairs (a × b = 55,728)
1 × 55728
2 × 27864
3 × 18576
4 × 13932
6 × 9288
8 × 6966
9 × 6192
12 × 4644
16 × 3483
18 × 3096
24 × 2322
27 × 2064
36 × 1548
43 × 1296
48 × 1161
54 × 1032
72 × 774
81 × 688
86 × 648
108 × 516
129 × 432
144 × 387
162 × 344
172 × 324
216 × 258
First multiples
55,728 · 111,456 (double) · 167,184 · 222,912 · 278,640 · 334,368 · 390,096 · 445,824 · 501,552 · 557,280

Sums & aliquot sequence

As consecutive integers: 18,575 + 18,576 + 18,577 6,188 + 6,189 + … + 6,196 2,051 + 2,052 + … + 2,077 1,726 + 1,727 + … + 1,757
Aliquot sequence: 55,728 109,316 81,994 52,214 26,110 27,746 13,876 10,414 5,714 2,860 4,196 3,154 1,886 1,138 572 604 460 — unresolved within range

Representations

In words
fifty-five thousand seven hundred twenty-eight
Ordinal
55728th
Binary
1101100110110000
Octal
154660
Hexadecimal
0xD9B0
Base64
2bA=
One's complement
9,807 (16-bit)
In other bases
ternary (3) 2211110000
quaternary (4) 31212300
quinary (5) 3240403
senary (6) 1110000
septenary (7) 321321
nonary (9) 84400
undecimal (11) 38962
duodecimal (12) 28300
tridecimal (13) 1c49a
tetradecimal (14) 16448
pentadecimal (15) 117a3

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵νεψκηʹ
Mayan (base 20)
𝋦·𝋳·𝋦·𝋨
Chinese
五萬五千七百二十八
Chinese (financial)
伍萬伍仟柒佰貳拾捌
In other modern scripts
Eastern Arabic ٥٥٧٢٨ Devanagari ५५७२८ Bengali ৫৫৭২৮ Tamil ௫௫௭௨௮ Thai ๕๕๗๒๘ Tibetan ༥༥༧༢༨ Khmer ៥៥៧២៨ Lao ໕໕໗໒໘ Burmese ၅၅၇၂၈

Digit at this position in famous constants

π — Pi (π)
Digit 55,728 = 4
e — Euler's number (e)
Digit 55,728 = 6
φ — Golden ratio (φ)
Digit 55,728 = 8
√2 — Pythagoras's (√2)
Digit 55,728 = 6
ln 2 — Natural log of 2
Digit 55,728 = 6
γ — Euler-Mascheroni (γ)
Digit 55,728 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 55728, here are decompositions:

  • 7 + 55721 = 55728
  • 11 + 55717 = 55728
  • 17 + 55711 = 55728
  • 31 + 55697 = 55728
  • 37 + 55691 = 55728
  • 47 + 55681 = 55728
  • 61 + 55667 = 55728
  • 67 + 55661 = 55728

Showing the first eight; more decompositions exist.

Hex color
#00D9B0
RGB(0, 217, 176)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.217.176.

Address
0.0.217.176
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.217.176

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 55728 first appears in π at position 72,267 of the decimal expansion (the 72,267ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.