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42,356

42,356 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.).
Arithmetic Number Deficient Number Evil Number Recamán's Sequence

Properties

Parity
Even
Digit count
5
Digit sum
20
Digit product
720
Digital root
2
Palindrome
No
Bit width
16 bits
Reversed
65,324
Recamán's sequence
a(150,911) = 42,356
Square (n²)
1,794,030,736
Cube (n³)
75,987,965,854,016
Divisor count
6
σ(n) — sum of divisors
74,130
φ(n) — Euler's totient
21,176
Sum of prime factors
10,593

Primality

Prime factorization: 2 2 × 10589

Nearest primes: 42,349 (−7) · 42,359 (+3)

Divisors & multiples

All divisors (6)
1 · 2 · 4 · 10589 · 21178 (half) · 42356
Aliquot sum (sum of proper divisors): 31,774
Factor pairs (a × b = 42,356)
1 × 42356
2 × 21178
4 × 10589
First multiples
42,356 · 84,712 (double) · 127,068 · 169,424 · 211,780 · 254,136 · 296,492 · 338,848 · 381,204 · 423,560

Sums & aliquot sequence

As a sum of two squares: 116² + 170²
As consecutive integers: 5,291 + 5,292 + … + 5,298
Aliquot sequence: 42,356 31,774 15,890 16,942 9,194 4,600 6,560 9,316 8,072 7,078 3,542 3,370 2,714 1,606 1,058 601 1 — unresolved within range

Representations

In words
forty-two thousand three hundred fifty-six
Ordinal
42356th
Binary
1010010101110100
Octal
122564
Hexadecimal
0xA574
Base64
pXQ=
One's complement
23,179 (16-bit)
In other bases
ternary (3) 2011002202
quaternary (4) 22111310
quinary (5) 2323411
senary (6) 524032
septenary (7) 234326
nonary (9) 64082
undecimal (11) 29906
duodecimal (12) 20618
tridecimal (13) 16382
tetradecimal (14) 11616
pentadecimal (15) c83b

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβτνϛʹ
Mayan (base 20)
𝋥·𝋥·𝋱·𝋰
Chinese
四萬二千三百五十六
Chinese (financial)
肆萬貳仟參佰伍拾陸
In other modern scripts
Eastern Arabic ٤٢٣٥٦ Devanagari ४२३५६ Bengali ৪২৩৫৬ Tamil ௪௨௩௫௬ Thai ๔๒๓๕๖ Tibetan ༤༢༣༥༦ Khmer ៤២៣៥៦ Lao ໔໒໓໕໖ Burmese ၄၂၃၅၆

Digit at this position in famous constants

π — Pi (π)
Digit 42,356 = 9
e — Euler's number (e)
Digit 42,356 = 8
φ — Golden ratio (φ)
Digit 42,356 = 4
√2 — Pythagoras's (√2)
Digit 42,356 = 4
ln 2 — Natural log of 2
Digit 42,356 = 0
γ — Euler-Mascheroni (γ)
Digit 42,356 = 5

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42356, here are decompositions:

  • 7 + 42349 = 42356
  • 19 + 42337 = 42356
  • 73 + 42283 = 42356
  • 163 + 42193 = 42356
  • 199 + 42157 = 42356
  • 283 + 42073 = 42356
  • 313 + 42043 = 42356
  • 337 + 42019 = 42356

Showing the first eight; more decompositions exist.

Unicode codepoint
Vai Syllable Woo
U+A574
Other letter (Lo)

UTF-8 encoding: EA 95 B4 (3 bytes).

Hex color
#00A574
RGB(0, 165, 116)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.116.

Address
0.0.165.116
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.165.116

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

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000042356
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Position in π

The digit sequence 42356 first appears in π at position 172,885 of the decimal expansion (the 172,885ordinal-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.