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Number

16,231

16,231 is a prime, odd.

Arithmetic Number Deficient Number Odious Number Pernicious Number Prime Recamán's Sequence Squarefree Twin Prime

Properties

Parity
Odd
Digit count
5
Digit sum
13
Digit product
36
Digital root
4
Palindrome
No
Bit width
14 bits
Reversed
13,261
Recamán's sequence
a(18,250) = 16,231
Square (n²)
263,445,361
Cube (n³)
4,275,981,654,391
Divisor count
2
σ(n) — sum of divisors
16,232
φ(n) — Euler's totient
16,230

Primality

16,231 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 16231
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 16,231)
1 × 16231
First multiples
16,231 · 32,462 (double) · 48,693 · 64,924 · 81,155 · 97,386 · 113,617 · 129,848 · 146,079 · 162,310

Sums & aliquot sequence

As consecutive integers: 8,115 + 8,116

Representations

In words
sixteen thousand two hundred thirty-one
Ordinal
16231st
Binary
11111101100111
Octal
37547
Hexadecimal
0x3F67
Base64
P2c=
One's complement
49,304 (16-bit)
In other bases
ternary (3) 211021011
quaternary (4) 3331213
quinary (5) 1004411
senary (6) 203051
septenary (7) 65215
nonary (9) 24234
undecimal (11) 11216
duodecimal (12) 9487
tridecimal (13) 7507
tetradecimal (14) 5cb5
pentadecimal (15) 4c21

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ιϛσλαʹ
Mayan (base 20)
𝋢·𝋠·𝋫·𝋫
Chinese
一萬六千二百三十一
Chinese (financial)
壹萬陸仟貳佰參拾壹
In other modern scripts
Eastern Arabic ١٦٢٣١ Devanagari १६२३१ Bengali ১৬২৩১ Tamil ௧௬௨௩௧ Thai ๑๖๒๓๑ Tibetan ༡༦༢༣༡ Khmer ១៦២៣១ Lao ໑໖໒໓໑ Burmese ၁၆၂၃၁

Digit at this position in famous constants

π — Pi (π)
Digit 16,231 = 0
e — Euler's number (e)
Digit 16,231 = 8
φ — Golden ratio (φ)
Digit 16,231 = 7
√2 — Pythagoras's (√2)
Digit 16,231 = 1
ln 2 — Natural log of 2
Digit 16,231 = 6
γ — Euler-Mascheroni (γ)
Digit 16,231 = 9

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 16,229 (gap of 2)
  • Next prime: 16,249 (gap of 18)

Pair status: twin with 16229.

Unicode codepoint
CJK Unified Ideograph-3F67
U+3F67
Other letter (Lo)

UTF-8 encoding: E3 BD A7 (3 bytes).

Hex color
#003F67
RGB(0, 63, 103)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.63.103.

Address
0.0.63.103
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.63.103

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

Position in π

The digit sequence 16231 first appears in π at position 6,316 of the decimal expansion (the 6,316ordinal-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.