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5,720

5,720 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 Evil Number Octagonal Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
4
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
13 bits
Reversed
275
Recamán's sequence
a(3,688) = 5,720
Square (n²)
32,718,400
Cube (n³)
187,149,248,000
Divisor count
32
σ(n) — sum of divisors
15,120
φ(n) — Euler's totient
1,920
Sum of prime factors
35

Primality

Prime factorization: 2 3 × 5 × 11 × 13

Nearest primes: 5,717 (−3) · 5,737 (+17)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 11 · 13 · 20 · 22 · 26 · 40 · 44 · 52 · 55 · 65 · 88 · 104 · 110 · 130 · 143 · 220 · 260 · 286 · 440 · 520 · 572 · 715 · 1144 · 1430 · 2860 (half) · 5720
Aliquot sum (sum of proper divisors): 9,400
Factor pairs (a × b = 5,720)
1 × 5720
2 × 2860
4 × 1430
5 × 1144
8 × 715
10 × 572
11 × 520
13 × 440
20 × 286
22 × 260
26 × 220
40 × 143
44 × 130
52 × 110
55 × 104
65 × 88
First multiples
5,720 · 11,440 (double) · 17,160 · 22,880 · 28,600 · 34,320 · 40,040 · 45,760 · 51,480 · 57,200

Sums & aliquot sequence

As consecutive integers: 1,142 + 1,143 + 1,144 + 1,145 + 1,146 515 + 516 + … + 525 434 + 435 + … + 446 350 + 351 + … + 365
Aliquot sequence: 5,720 9,400 12,920 19,480 24,440 36,040 51,440 68,344 59,816 52,354 26,180 46,396 46,452 81,228 135,604 146,636 146,692 — unresolved within range

Representations

In words
five thousand seven hundred twenty
Ordinal
5720th
Binary
1011001011000
Octal
13130
Hexadecimal
0x1658
Base64
Flg=
One's complement
59,815 (16-bit)
In other bases
ternary (3) 21211212
quaternary (4) 1121120
quinary (5) 140340
senary (6) 42252
septenary (7) 22451
nonary (9) 7755
undecimal (11) 4330
duodecimal (12) 3388
tridecimal (13) 27b0
tetradecimal (14) 2128
pentadecimal (15) 1a65

Historical numeral systems

Babylonian (base 60)
𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵εψκʹ
Mayan (base 20)
𝋮·𝋦·𝋠
Chinese
五千七百二十
Chinese (financial)
伍仟柒佰貳拾
In other modern scripts
Eastern Arabic ٥٧٢٠ Devanagari ५७२० Bengali ৫৭২০ Tamil ௫௭௨௦ Thai ๕๗๒๐ Tibetan ༥༧༢༠ Khmer ៥៧២០ Lao ໕໗໒໐ Burmese ၅၇၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 5,720 = 1
e — Euler's number (e)
Digit 5,720 = 6
φ — Golden ratio (φ)
Digit 5,720 = 8
√2 — Pythagoras's (√2)
Digit 5,720 = 1
ln 2 — Natural log of 2
Digit 5,720 = 8
γ — Euler-Mascheroni (γ)
Digit 5,720 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 5720, here are decompositions:

  • 3 + 5717 = 5720
  • 19 + 5701 = 5720
  • 31 + 5689 = 5720
  • 37 + 5683 = 5720
  • 61 + 5659 = 5720
  • 67 + 5653 = 5720
  • 73 + 5647 = 5720
  • 79 + 5641 = 5720

Showing the first eight; more decompositions exist.

Unicode codepoint
Canadian Syllabics Carrier Shi
U+1658
Other letter (Lo)

UTF-8 encoding: E1 99 98 (3 bytes).

Hex color
#001658
RGB(0, 22, 88)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.22.88.

Address
0.0.22.88
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.22.88

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

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000005720
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Position in π

The digit sequence 5720 first appears in π at position 1,007 of the decimal expansion (the 1,007ordinal-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.