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80,672

80,672 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.).
Deficient Number Odious Number Pernicious Number Recamán's Sequence

Properties

Parity
Even
Digit count
5
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
17 bits
Reversed
27,608
Recamán's sequence
a(118,763) = 80,672
Square (n²)
6,507,971,584
Cube (n³)
525,011,083,624,448
Divisor count
12
σ(n) — sum of divisors
158,886
φ(n) — Euler's totient
40,320
Sum of prime factors
2,531

Primality

Prime factorization: 2 5 × 2521

Nearest primes: 80,671 (−1) · 80,677 (+5)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 8 · 16 · 32 · 2521 · 5042 · 10084 · 20168 · 40336 (half) · 80672
Aliquot sum (sum of proper divisors): 78,214
Factor pairs (a × b = 80,672)
1 × 80672
2 × 40336
4 × 20168
8 × 10084
16 × 5042
32 × 2521
First multiples
80,672 · 161,344 (double) · 242,016 · 322,688 · 403,360 · 484,032 · 564,704 · 645,376 · 726,048 · 806,720

Sums & aliquot sequence

As a sum of two squares: 4² + 284²
As consecutive integers: 1,229 + 1,230 + … + 1,292
Aliquot sequence: 80,672 78,214 39,110 31,306 19,958 11,794 5,900 7,120 9,620 12,724 9,550 8,306 4,156 3,124 2,924 2,620 2,924 — enters a cycle

Representations

In words
eighty thousand six hundred seventy-two
Ordinal
80672nd
Binary
10011101100100000
Octal
235440
Hexadecimal
0x13B20
Base64
ATsg
One's complement
4,294,886,623 (32-bit)
In other bases
ternary (3) 11002122212
quaternary (4) 103230200
quinary (5) 10040142
senary (6) 1421252
septenary (7) 454124
nonary (9) 132585
undecimal (11) 55679
duodecimal (12) 3a828
tridecimal (13) 2a947
tetradecimal (14) 21584
pentadecimal (15) 18d82

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵πχοβʹ
Mayan (base 20)
𝋪·𝋡·𝋭·𝋬
Chinese
八萬零六百七十二
Chinese (financial)
捌萬零陸佰柒拾貳
In other modern scripts
Eastern Arabic ٨٠٦٧٢ Devanagari ८०६७२ Bengali ৮০৬৭২ Tamil ௮௦௬௭௨ Thai ๘๐๖๗๒ Tibetan ༨༠༦༧༢ Khmer ៨០៦៧២ Lao ໘໐໖໗໒ Burmese ၈၀၆၇၂

Digit at this position in famous constants

π — Pi (π)
Digit 80,672 = 9
e — Euler's number (e)
Digit 80,672 = 5
φ — Golden ratio (φ)
Digit 80,672 = 6
√2 — Pythagoras's (√2)
Digit 80,672 = 6
ln 2 — Natural log of 2
Digit 80,672 = 8
γ — Euler-Mascheroni (γ)
Digit 80,672 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 80672, here are decompositions:

  • 3 + 80669 = 80672
  • 43 + 80629 = 80672
  • 61 + 80611 = 80672
  • 73 + 80599 = 80672
  • 181 + 80491 = 80672
  • 199 + 80473 = 80672
  • 223 + 80449 = 80672
  • 331 + 80341 = 80672

Showing the first eight; more decompositions exist.

Unicode codepoint
𓬠
Egyptian Hieroglyph-13B20
U+13B20
Other letter (Lo)

UTF-8 encoding: F0 93 AC A0 (4 bytes).

Hex color
#013B20
RGB(1, 59, 32)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.59.32.

Address
0.1.59.32
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.59.32

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

Position in π

The digit sequence 80672 first appears in π at position 96,248 of the decimal expansion (the 96,248ordinal-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.