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53,720

53,720 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 Arithmetic Number Evil Number Harshad / Niven Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
16 bits
Reversed
2,735
Recamán's sequence
a(294,012) = 53,720
Square (n²)
2,885,838,400
Cube (n³)
155,027,238,848,000
Divisor count
32
σ(n) — sum of divisors
129,600
φ(n) — Euler's totient
19,968
Sum of prime factors
107

Primality

Prime factorization: 2 3 × 5 × 17 × 79

Nearest primes: 53,719 (−1) · 53,731 (+11)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 17 · 20 · 34 · 40 · 68 · 79 · 85 · 136 · 158 · 170 · 316 · 340 · 395 · 632 · 680 · 790 · 1343 · 1580 · 2686 · 3160 · 5372 · 6715 · 10744 · 13430 · 26860 (half) · 53720
Aliquot sum (sum of proper divisors): 75,880
Factor pairs (a × b = 53,720)
1 × 53720
2 × 26860
4 × 13430
5 × 10744
8 × 6715
10 × 5372
17 × 3160
20 × 2686
34 × 1580
40 × 1343
68 × 790
79 × 680
85 × 632
136 × 395
158 × 340
170 × 316
First multiples
53,720 · 107,440 (double) · 161,160 · 214,880 · 268,600 · 322,320 · 376,040 · 429,760 · 483,480 · 537,200

Sums & aliquot sequence

As consecutive integers: 10,742 + 10,743 + 10,744 + 10,745 + 10,746 3,350 + 3,351 + … + 3,365 3,152 + 3,153 + … + 3,168 641 + 642 + … + 719
Aliquot sequence: 53,720 75,880 119,960 150,040 233,000 314,560 435,248 485,080 628,760 915,640 1,332,920 1,734,280 2,205,560 3,466,600 4,593,710 4,426,882 2,213,444 — unresolved within range

Representations

In words
fifty-three thousand seven hundred twenty
Ordinal
53720th
Binary
1101000111011000
Octal
150730
Hexadecimal
0xD1D8
Base64
0dg=
One's complement
11,815 (16-bit)
In other bases
ternary (3) 2201200122
quaternary (4) 31013120
quinary (5) 3204340
senary (6) 1052412
septenary (7) 312422
nonary (9) 81618
undecimal (11) 373a7
duodecimal (12) 27108
tridecimal (13) 1b5b4
tetradecimal (14) 15812
pentadecimal (15) 10db5

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵νγψκʹ
Mayan (base 20)
𝋦·𝋮·𝋦·𝋠
Chinese
五萬三千七百二十
Chinese (financial)
伍萬參仟柒佰貳拾
In other modern scripts
Eastern Arabic ٥٣٧٢٠ Devanagari ५३७२० Bengali ৫৩৭২০ Tamil ௫௩௭௨௦ Thai ๕๓๗๒๐ Tibetan ༥༣༧༢༠ Khmer ៥៣៧២០ Lao ໕໓໗໒໐ Burmese ၅၃၇၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 53,720 = 0
e — Euler's number (e)
Digit 53,720 = 3
φ — Golden ratio (φ)
Digit 53,720 = 0
√2 — Pythagoras's (√2)
Digit 53,720 = 5
ln 2 — Natural log of 2
Digit 53,720 = 3
γ — Euler-Mascheroni (γ)
Digit 53,720 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 53720, here are decompositions:

  • 3 + 53717 = 53720
  • 67 + 53653 = 53720
  • 97 + 53623 = 53720
  • 103 + 53617 = 53720
  • 109 + 53611 = 53720
  • 127 + 53593 = 53720
  • 151 + 53569 = 53720
  • 193 + 53527 = 53720

Showing the first eight; more decompositions exist.

Unicode codepoint
Hangul Syllable Twae
U+D1D8
Other letter (Lo)

UTF-8 encoding: ED 87 98 (3 bytes).

Hex color
#00D1D8
RGB(0, 209, 216)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.209.216.

Address
0.0.209.216
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.209.216

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

Position in π

The digit sequence 53720 first appears in π at position 29,510 of the decimal expansion (the 29,510ordinal-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.