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42,426

42,426 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 Harshad / Niven Odious Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
18
Digit product
384
Digital root
9
Palindrome
No
Bit width
16 bits
Reversed
62,424
Recamán's sequence
a(150,771) = 42,426
Square (n²)
1,799,965,476
Cube (n³)
76,365,335,284,776
Divisor count
12
σ(n) — sum of divisors
91,962
φ(n) — Euler's totient
14,136
Sum of prime factors
2,365

Primality

Prime factorization: 2 × 3 2 × 2357

Nearest primes: 42,409 (−17) · 42,433 (+7)

Divisors & multiples

All divisors (12)
1 · 2 · 3 · 6 · 9 · 18 · 2357 · 4714 · 7071 · 14142 · 21213 (half) · 42426
Aliquot sum (sum of proper divisors): 49,536
Factor pairs (a × b = 42,426)
1 × 42426
2 × 21213
3 × 14142
6 × 7071
9 × 4714
18 × 2357
First multiples
42,426 · 84,852 (double) · 127,278 · 169,704 · 212,130 · 254,556 · 296,982 · 339,408 · 381,834 · 424,260

Sums & aliquot sequence

As a sum of two squares: 45² + 201²
As consecutive integers: 14,141 + 14,142 + 14,143 10,605 + 10,606 + 10,607 + 10,608 4,710 + 4,711 + … + 4,718 3,530 + 3,531 + … + 3,541
Aliquot sequence: 42,426 49,536 96,324 138,876 191,748 296,012 234,364 207,420 373,524 549,804 733,100 857,944 750,716 585,724 448,260 852,732 1,302,876 — unresolved within range

Representations

In words
forty-two thousand four hundred twenty-six
Ordinal
42426th
Binary
1010010110111010
Octal
122672
Hexadecimal
0xA5BA
Base64
pbo=
One's complement
23,109 (16-bit)
In other bases
ternary (3) 2011012100
quaternary (4) 22112322
quinary (5) 2324201
senary (6) 524230
septenary (7) 234456
nonary (9) 64170
undecimal (11) 2996a
duodecimal (12) 20676
tridecimal (13) 16407
tetradecimal (14) 11666
pentadecimal (15) c886

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβυκϛʹ
Mayan (base 20)
𝋥·𝋦·𝋡·𝋦
Chinese
四萬二千四百二十六
Chinese (financial)
肆萬貳仟肆佰貳拾陸
In other modern scripts
Eastern Arabic ٤٢٤٢٦ Devanagari ४२४२६ Bengali ৪২৪২৬ Tamil ௪௨௪௨௬ Thai ๔๒๔๒๖ Tibetan ༤༢༤༢༦ Khmer ៤២៤២៦ Lao ໔໒໔໒໖ Burmese ၄၂၄၂၆

Digit at this position in famous constants

π — Pi (π)
Digit 42,426 = 4
e — Euler's number (e)
Digit 42,426 = 0
φ — Golden ratio (φ)
Digit 42,426 = 2
√2 — Pythagoras's (√2)
Digit 42,426 = 7
ln 2 — Natural log of 2
Digit 42,426 = 9
γ — Euler-Mascheroni (γ)
Digit 42,426 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42426, here are decompositions:

  • 17 + 42409 = 42426
  • 19 + 42407 = 42426
  • 23 + 42403 = 42426
  • 29 + 42397 = 42426
  • 47 + 42379 = 42426
  • 53 + 42373 = 42426
  • 67 + 42359 = 42426
  • 89 + 42337 = 42426

Showing the first eight; more decompositions exist.

Unicode codepoint
Vai Syllable O
U+A5BA
Other letter (Lo)

UTF-8 encoding: EA 96 BA (3 bytes).

Hex color
#00A5BA
RGB(0, 165, 186)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.186.

Address
0.0.165.186
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.165.186

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

Position in π

The digit sequence 42426 first appears in π at position 33,618 of the decimal expansion (the 33,618ordinal-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.