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42,918

42,918 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 Odious Number Recamán's Sequence Semiperfect Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
24
Digit product
576
Digital root
6
Palindrome
No
Bit width
16 bits
Reversed
81,924
Recamán's sequence
a(72,756) = 42,918
Square (n²)
1,841,954,724
Cube (n³)
79,053,012,844,632
Divisor count
16
σ(n) — sum of divisors
89,856
φ(n) — Euler's totient
13,640
Sum of prime factors
339

Primality

Prime factorization: 2 × 3 × 23 × 311

Nearest primes: 42,901 (−17) · 42,923 (+5)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 6 · 23 · 46 · 69 · 138 · 311 · 622 · 933 · 1866 · 7153 · 14306 · 21459 (half) · 42918
Aliquot sum (sum of proper divisors): 46,938
Factor pairs (a × b = 42,918)
1 × 42918
2 × 21459
3 × 14306
6 × 7153
23 × 1866
46 × 933
69 × 622
138 × 311
First multiples
42,918 · 85,836 (double) · 128,754 · 171,672 · 214,590 · 257,508 · 300,426 · 343,344 · 386,262 · 429,180

Sums & aliquot sequence

As consecutive integers: 14,305 + 14,306 + 14,307 10,728 + 10,729 + 10,730 + 10,731 3,571 + 3,572 + … + 3,582 1,855 + 1,856 + … + 1,877
Aliquot sequence: 42,918 46,938 46,950 69,858 81,540 173,820 313,044 456,396 625,188 862,620 1,774,308 2,365,772 1,774,336 1,904,864 2,364,016 2,283,008 3,445,792 — unresolved within range

Representations

In words
forty-two thousand nine hundred eighteen
Ordinal
42918th
Binary
1010011110100110
Octal
123646
Hexadecimal
0xA7A6
Base64
p6Y=
One's complement
22,617 (16-bit)
In other bases
ternary (3) 2011212120
quaternary (4) 22132212
quinary (5) 2333133
senary (6) 530410
septenary (7) 236061
nonary (9) 64776
undecimal (11) 2a277
duodecimal (12) 20a06
tridecimal (13) 166c5
tetradecimal (14) 118d8
pentadecimal (15) cab3

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβϡιηʹ
Mayan (base 20)
𝋥·𝋧·𝋥·𝋲
Chinese
四萬二千九百一十八
Chinese (financial)
肆萬貳仟玖佰壹拾捌
In other modern scripts
Eastern Arabic ٤٢٩١٨ Devanagari ४२९१८ Bengali ৪২৯১৮ Tamil ௪௨௯௧௮ Thai ๔๒๙๑๘ Tibetan ༤༢༩༡༨ Khmer ៤២៩១៨ Lao ໔໒໙໑໘ Burmese ၄၂၉၁၈

Digit at this position in famous constants

π — Pi (π)
Digit 42,918 = 8
e — Euler's number (e)
Digit 42,918 = 1
φ — Golden ratio (φ)
Digit 42,918 = 3
√2 — Pythagoras's (√2)
Digit 42,918 = 6
ln 2 — Natural log of 2
Digit 42,918 = 2
γ — Euler-Mascheroni (γ)
Digit 42,918 = 5

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42918, here are decompositions:

  • 17 + 42901 = 42918
  • 19 + 42899 = 42918
  • 59 + 42859 = 42918
  • 79 + 42839 = 42918
  • 89 + 42829 = 42918
  • 97 + 42821 = 42918
  • 131 + 42787 = 42918
  • 151 + 42767 = 42918

Showing the first eight; more decompositions exist.

Unicode codepoint
Latin Capital Letter R With Oblique Stroke
U+A7A6
Uppercase letter (Lu)

UTF-8 encoding: EA 9E A6 (3 bytes).

Hex color
#00A7A6
RGB(0, 167, 166)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.166.

Address
0.0.167.166
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.167.166

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

Position in π

The digit sequence 42918 first appears in π at position 63,296 of the decimal expansion (the 63,296ordinal-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.