Number

15,149

15,149 is a prime, odd.

15,149 (fifteen thousand one hundred forty-nine) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x3B2D.

Arithmetic Number Chen Prime Cube-Free Deficient Number Emirp Odious Number Prime Pythagorean Prime Recamán's Sequence Self Number Squarefree

Interestingness

★ ★ ★ ★ ★

9 notable facts · grade A

15,137 15,138 15,139 15,140 15,141 15,142 15,143 15,144 15,145 15,146 15,147 15,148 15,149 15,150 15,151 15,152 15,153 15,154 15,155 15,156 15,157 15,158 15,159 15,160 15,161

less more

Properties

Parity: Odd
Digit count: 5
Digit sum: 20
Digit product: 180
Digital root: 2
Palindrome: No
Bit width: 14 bits
Reversed: 94,151
Recamán's sequence: a(46,201) = 15,149
Square (n²): 229,492,201
Cube (n³): 3,476,577,352,949
Divisor count: 2
σ(n) — sum of divisors: 15,150
φ(n) — Euler's totient: 15,148

Primality

15,149 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 15149

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 15,149)

1 × 15149

First multiples

15,149 · 30,298 (double) · 45,447 · 60,596 · 75,745 · 90,894 · 106,043 · 121,192 · 136,341 · 151,490

Sums & aliquot sequence

As a sum of two squares: 35² + 118²

As consecutive integers: 7,574 + 7,575

Continued fraction of √n

√15,149 = [123; (12, 3, 3, 2, 6, 4, 1, 1, 2, 1, 2, 5, 1, 1, 1, 2, 1, 34, 2, 3, 1, 2, 8, 2, …)]

Representations

In words: fifteen thousand one hundred forty-nine
Ordinal: 15149th
Binary: 11101100101101
Octal: 35455
Hexadecimal: 0x3B2D
Base64: Oy0=
One's complement: 50,386 (16-bit)
Scientific notation: 1.5149 × 10⁴
As a duration: 15,149 s = 4 hours, 12 minutes, 29 seconds

In other bases

ternary (3) 202210002

quaternary (4) 3230231

quinary (5) 441044

senary (6) 154045

septenary (7) 62111

nonary (9) 22702

undecimal (11) 10422

duodecimal (12) 8925

tridecimal (13) 6b84

tetradecimal (14) 5741

pentadecimal (15) 474e

As an angle

15,149° = 42 × 360° + 29°

29° ≈ 0.506 rad

Compass bearing: NNE (north-northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ιερμθʹ
Mayan (base 20): 𝋡·𝋱·𝋱·𝋩
Chinese: 一萬五千一百四十九
Chinese (financial): 壹萬伍仟壹佰肆拾玖

In other modern scripts

Eastern Arabic ١٥١٤٩ Devanagari १५१४९ Bengali ১৫১৪৯ Tamil ௧௫௧௪௯ Thai ๑๕๑๔๙ Tibetan ༡༥༡༤༩ Khmer ១៥១៤៩ Lao ໑໕໑໔໙ Burmese ၁၅၁၄၉

Digit at this position in famous constants

π — Pi (π): Digit 15,149 = 4
e — Euler's number (e): Digit 15,149 = 6
φ — Golden ratio (φ): Digit 15,149 = 9
√2 — Pythagoras's (√2): Digit 15,149 = 9
ln 2 — Natural log of 2: Digit 15,149 = 2
γ — Euler-Mascheroni (γ): Digit 15,149 = 6

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 15,139 (gap of 10)
Next prime: 15,161 (gap of 12)

Unicode codepoint

㬭

CJK Unified Ideograph-3B2D

U+3B2D

Other letter (Lo)

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

Lookup U+3B2D on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#003B2D

RGB(0, 59, 45)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.59.45.

Address: 0.0.59.45
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.59.45

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

Musical pitch

Heard as a frequency, 15,149 Hz is closest to:

Concert pitch (A4 = 440 Hz): A♯9 (14917.2 Hz, +27¢)
Scientific pitch (C4 = 256 Hz): B9 (15464.4 Hz, -36¢)
Baroque pitch (A4 = 415 Hz): B9 (14906.3 Hz, +28¢)

Position in π

The digit sequence 15149 first appears in π at position 178,479 of the decimal expansion (the 178,479ordinal-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 15149 on Pi Search ↗