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80,740

80,740 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 Happy Number Odious Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
17 bits
Reversed
4,708
Recamán's sequence
a(118,627) = 80,740
Square (n²)
6,518,947,600
Cube (n³)
526,339,829,224,000
Divisor count
24
σ(n) — sum of divisors
185,472
φ(n) — Euler's totient
29,280
Sum of prime factors
387

Primality

Prime factorization: 2 2 × 5 × 11 × 367

Nearest primes: 80,737 (−3) · 80,747 (+7)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 11 · 20 · 22 · 44 · 55 · 110 · 220 · 367 · 734 · 1468 · 1835 · 3670 · 4037 · 7340 · 8074 · 16148 · 20185 · 40370 (half) · 80740
Aliquot sum (sum of proper divisors): 104,732
Factor pairs (a × b = 80,740)
1 × 80740
2 × 40370
4 × 20185
5 × 16148
10 × 8074
11 × 7340
20 × 4037
22 × 3670
44 × 1835
55 × 1468
110 × 734
220 × 367
First multiples
80,740 · 161,480 (double) · 242,220 · 322,960 · 403,700 · 484,440 · 565,180 · 645,920 · 726,660 · 807,400

Sums & aliquot sequence

As consecutive integers: 16,146 + 16,147 + 16,148 + 16,149 + 16,150 10,089 + 10,090 + … + 10,096 7,335 + 7,336 + … + 7,345 1,999 + 2,000 + … + 2,038
Aliquot sequence: 80,740 104,732 78,556 62,564 46,930 49,082 35,590 28,490 37,174 18,590 20,938 13,352 11,698 5,852 7,588 7,644 14,700 — unresolved within range

Representations

In words
eighty thousand seven hundred forty
Ordinal
80740th
Binary
10011101101100100
Octal
235544
Hexadecimal
0x13B64
Base64
ATtk
One's complement
4,294,886,555 (32-bit)
In other bases
ternary (3) 11002202101
quaternary (4) 103231210
quinary (5) 10040430
senary (6) 1421444
septenary (7) 454252
nonary (9) 132671
undecimal (11) 55730
duodecimal (12) 3a884
tridecimal (13) 2a99a
tetradecimal (14) 215d2
pentadecimal (15) 18dca

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵πψμʹ
Mayan (base 20)
𝋪·𝋡·𝋱·𝋠
Chinese
八萬零七百四十
Chinese (financial)
捌萬零柒佰肆拾
In other modern scripts
Eastern Arabic ٨٠٧٤٠ Devanagari ८०७४० Bengali ৮০৭৪০ Tamil ௮௦௭௪௦ Thai ๘๐๗๔๐ Tibetan ༨༠༧༤༠ Khmer ៨០៧៤០ Lao ໘໐໗໔໐ Burmese ၈၀၇၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 80,740 = 9
e — Euler's number (e)
Digit 80,740 = 8
φ — Golden ratio (φ)
Digit 80,740 = 8
√2 — Pythagoras's (√2)
Digit 80,740 = 7
ln 2 — Natural log of 2
Digit 80,740 = 7
γ — Euler-Mascheroni (γ)
Digit 80,740 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 80740, here are decompositions:

  • 3 + 80737 = 80740
  • 53 + 80687 = 80740
  • 59 + 80681 = 80740
  • 71 + 80669 = 80740
  • 83 + 80657 = 80740
  • 89 + 80651 = 80740
  • 113 + 80627 = 80740
  • 137 + 80603 = 80740

Showing the first eight; more decompositions exist.

Unicode codepoint
𓭤
Egyptian Hieroglyph-13B64
U+13B64
Other letter (Lo)

UTF-8 encoding: F0 93 AD A4 (4 bytes).

Hex color
#013B64
RGB(1, 59, 100)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.59.100.

Address
0.1.59.100
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.59.100

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

Position in π

The digit sequence 80740 first appears in π at position 98,888 of the decimal expansion (the 98,888ordinal-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.