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42,618

42,618 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 Sphenic Number Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
21
Digit product
384
Digital root
3
Palindrome
No
Bit width
16 bits
Reversed
81,624
Recamán's sequence
a(73,356) = 42,618
Square (n²)
1,816,293,924
Cube (n³)
77,406,814,453,032
Divisor count
8
σ(n) — sum of divisors
85,248
φ(n) — Euler's totient
14,204
Sum of prime factors
7,108

Primality

Prime factorization: 2 × 3 × 7103

Nearest primes: 42,611 (−7) · 42,641 (+23)

Divisors & multiples

All divisors (8)
1 · 2 · 3 · 6 · 7103 · 14206 · 21309 (half) · 42618
Aliquot sum (sum of proper divisors): 42,630
Factor pairs (a × b = 42,618)
1 × 42618
2 × 21309
3 × 14206
6 × 7103
First multiples
42,618 · 85,236 (double) · 127,854 · 170,472 · 213,090 · 255,708 · 298,326 · 340,944 · 383,562 · 426,180

Sums & aliquot sequence

As consecutive integers: 14,205 + 14,206 + 14,207 10,653 + 10,654 + 10,655 + 10,656 3,546 + 3,547 + … + 3,557
Aliquot sequence: 42,618 42,630 80,490 112,758 112,770 224,190 382,338 521,838 632,250 1,083,438 1,367,010 2,382,750 4,244,130 8,111,070 15,493,410 25,823,070 59,010,210 — unresolved within range

Representations

In words
forty-two thousand six hundred eighteen
Ordinal
42618th
Binary
1010011001111010
Octal
123172
Hexadecimal
0xA67A
Base64
pno=
One's complement
22,917 (16-bit)
In other bases
ternary (3) 2011110110
quaternary (4) 22121322
quinary (5) 2330433
senary (6) 525150
septenary (7) 235152
nonary (9) 64413
undecimal (11) 2a024
duodecimal (12) 207b6
tridecimal (13) 16524
tetradecimal (14) 11762
pentadecimal (15) c963

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβχιηʹ
Mayan (base 20)
𝋥·𝋦·𝋪·𝋲
Chinese
四萬二千六百一十八
Chinese (financial)
肆萬貳仟陸佰壹拾捌
In other modern scripts
Eastern Arabic ٤٢٦١٨ Devanagari ४२६१८ Bengali ৪২৬১৮ Tamil ௪௨௬௧௮ Thai ๔๒๖๑๘ Tibetan ༤༢༦༡༨ Khmer ៤២៦១៨ Lao ໔໒໖໑໘ Burmese ၄၂၆၁၈

Digit at this position in famous constants

π — Pi (π)
Digit 42,618 = 3
e — Euler's number (e)
Digit 42,618 = 9
φ — Golden ratio (φ)
Digit 42,618 = 6
√2 — Pythagoras's (√2)
Digit 42,618 = 5
ln 2 — Natural log of 2
Digit 42,618 = 3
γ — Euler-Mascheroni (γ)
Digit 42,618 = 7

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42618, here are decompositions:

  • 7 + 42611 = 42618
  • 29 + 42589 = 42618
  • 41 + 42577 = 42618
  • 47 + 42571 = 42618
  • 61 + 42557 = 42618
  • 109 + 42509 = 42618
  • 127 + 42491 = 42618
  • 131 + 42487 = 42618

Showing the first eight; more decompositions exist.

Unicode codepoint
Combining Cyrillic Letter Soft Sign
U+A67A
Non-spacing mark (Mn)

UTF-8 encoding: EA 99 BA (3 bytes).

Hex color
#00A67A
RGB(0, 166, 122)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.122.

Address
0.0.166.122
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.166.122

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

Position in π

The digit sequence 42618 first appears in π at position 39,130 of the decimal expansion (the 39,130ordinal-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.