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Number

55,813

55,813 is a prime, odd.

Arithmetic Number Cousin Prime Deficient Number Odious Number Pernicious Number Prime Pythagorean Prime Recamán's Sequence Sexy Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
22
Digit product
600
Digital root
4
Palindrome
No
Bit width
16 bits
Reversed
31,855
Recamán's sequence
a(292,194) = 55,813
Square (n²)
3,115,090,969
Cube (n³)
173,862,572,252,797
Divisor count
2
σ(n) — sum of divisors
55,814
φ(n) — Euler's totient
55,812

Primality

55,813 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 55813
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 55,813)
1 × 55813
First multiples
55,813 · 111,626 (double) · 167,439 · 223,252 · 279,065 · 334,878 · 390,691 · 446,504 · 502,317 · 558,130

Sums & aliquot sequence

As a sum of two squares: 78² + 223²
As consecutive integers: 27,906 + 27,907

Representations

In words
fifty-five thousand eight hundred thirteen
Ordinal
55813th
Binary
1101101000000101
Octal
155005
Hexadecimal
0xDA05
Base64
2gU=
One's complement
9,722 (16-bit)
In other bases
ternary (3) 2211120011
quaternary (4) 31220011
quinary (5) 3241223
senary (6) 1110221
septenary (7) 321502
nonary (9) 84504
undecimal (11) 38a2a
duodecimal (12) 28371
tridecimal (13) 1c534
tetradecimal (14) 164a9
pentadecimal (15) 1180d

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺
Greek (Milesian)
͵νεωιγʹ
Mayan (base 20)
𝋦·𝋳·𝋪·𝋭
Chinese
五萬五千八百一十三
Chinese (financial)
伍萬伍仟捌佰壹拾參
In other modern scripts
Eastern Arabic ٥٥٨١٣ Devanagari ५५८१३ Bengali ৫৫৮১৩ Tamil ௫௫௮௧௩ Thai ๕๕๘๑๓ Tibetan ༥༥༨༡༣ Khmer ៥៥៨១៣ Lao ໕໕໘໑໓ Burmese ၅၅၈၁၃

Digit at this position in famous constants

π — Pi (π)
Digit 55,813 = 8
e — Euler's number (e)
Digit 55,813 = 5
φ — Golden ratio (φ)
Digit 55,813 = 4
√2 — Pythagoras's (√2)
Digit 55,813 = 9
ln 2 — Natural log of 2
Digit 55,813 = 2
γ — Euler-Mascheroni (γ)
Digit 55,813 = 2

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 55,807 (gap of 6)
  • Next prime: 55,817 (gap of 4)

Pair status: cousin with 55817, sexy with 55807.

Hex color
#00DA05
RGB(0, 218, 5)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.218.5.

Address
0.0.218.5
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.218.5

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

Position in π

The digit sequence 55813 first appears in π at position 46,684 of the decimal expansion (the 46,684ordinal-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.