Number

15,139

15,139 is a prime, odd.

Arithmetic Number Deficient Number Emirp Evil Number Prime Recamán's Sequence Squarefree Twin Prime

Properties

Parity: Odd
Digit count: 5
Digit sum: 19
Digit product: 135
Digital root: 1
Palindrome: No
Bit width: 14 bits
Reversed: 93,151
Recamán's sequence: a(5,038) = 15,139
Square (n²): 229,189,321
Cube (n³): 3,469,697,130,619
Divisor count: 2
σ(n) — sum of divisors: 15,140
φ(n) — Euler's totient: 15,138

Primality

15,139 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 15139

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 15,139)

1 × 15139

First multiples

15,139 · 30,278 (double) · 45,417 · 60,556 · 75,695 · 90,834 · 105,973 · 121,112 · 136,251 · 151,390

Sums & aliquot sequence

As consecutive integers: 7,569 + 7,570

Representations

In words: fifteen thousand one hundred thirty-nine
Ordinal: 15139th
Binary: 11101100100011
Octal: 35443
Hexadecimal: 0x3B23
Base64: OyM=
One's complement: 50,396 (16-bit)

In other bases

ternary (3) 202202201

quaternary (4) 3230203

quinary (5) 441024

senary (6) 154031

septenary (7) 62065

nonary (9) 22681

undecimal (11) 10413

duodecimal (12) 8917

tridecimal (13) 6b77

tetradecimal (14) 5735

pentadecimal (15) 4744

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ιερλθʹ
Mayan (base 20): 𝋡·𝋱·𝋰·𝋳
Chinese: 一萬五千一百三十九
Chinese (financial): 壹萬伍仟壹佰參拾玖

In other modern scripts

Eastern Arabic ١٥١٣٩ Devanagari १५१३९ Bengali ১৫১৩৯ Tamil ௧௫௧௩௯ Thai ๑๕๑๓๙ Tibetan ༡༥༡༣༩ Khmer ១៥១៣៩ Lao ໑໕໑໓໙ Burmese ၁၅၁၃၉

Digit at this position in famous constants

π — Pi (π): Digit 15,139 = 4
e — Euler's number (e): Digit 15,139 = 4
φ — Golden ratio (φ): Digit 15,139 = 6
√2 — Pythagoras's (√2): Digit 15,139 = 0
ln 2 — Natural log of 2: Digit 15,139 = 4
γ — Euler-Mascheroni (γ): Digit 15,139 = 3

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 15,137 (gap of 2)
Next prime: 15,149 (gap of 10)

Pair status: twin with 15137.

Unicode codepoint

㬣

CJK Unified Ideograph-3B23

U+3B23

Other letter (Lo)

UTF-8 encoding: E3 AC A3 (3 bytes).

Lookup U+3B23 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#003B23

RGB(0, 59, 35)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.59.35.

Address: 0.0.59.35
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.59.35

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

Position in π

The digit sequence 15139 first appears in π at position 140,090 of the decimal expansion (the 140,090ordinal-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.

Look up 15139 on Pi Search ↗