Live analysis

15,009

15,009 is a composite number, odd.

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.).

15,009 (fifteen thousand nine) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 3 × 5,003. Written other ways, in hexadecimal, 0x3AA1.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

14,997 14,998 14,999 15,000 15,001 15,002 15,003 15,004 15,005 15,006 15,007 15,008 15,009 15,010 15,011 15,012 15,013 15,014 15,015 15,016 15,017 15,018 15,019 15,020 15,021

less more

Properties

Parity: Odd
Digit count: 5
Digit sum: 15
Digit product: 0
Digital root: 6
Palindrome: No
Bit width: 14 bits
Reversed: 90,051
Recamán's sequence: a(90,282) = 15,009
Square (n²): 225,270,081
Cube (n³): 3,381,078,645,729
Divisor count: 4
σ(n) — sum of divisors: 20,016
φ(n) — Euler's totient: 10,004
Sum of prime factors: 5,006

Primality

Prime factorization: 3 × 5003

Nearest primes: 14,983 (−26) · 15,013 (+4)

Divisors & multiples

All divisors (4)

1 · 3 · 5003 · 15009

Aliquot sum (sum of proper divisors): 5,007

Factor pairs (a × b = 15,009)

1 × 15009

3 × 5003

First multiples

15,009 · 30,018 (double) · 45,027 · 60,036 · 75,045 · 90,054 · 105,063 · 120,072 · 135,081 · 150,090

Sums & aliquot sequence

As consecutive integers: 7,504 + 7,505 5,002 + 5,003 + 5,004 2,499 + 2,500 + 2,501 + 2,502 + 2,503 + 2,504

Aliquot sequence: 15,009 → 5,007 → 1,673 → 247 → 33 → 15 → 9 → 4 → 3 → 1 → 0 — terminates at zero

Continued fraction of √n

√15,009 = [122; (1, 1, 21, 1, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 13, 1, 3, 1, 6, 1, 6, 7, 1, 3, …)]

Period length 56 — the block in parentheses repeats forever.

Representations

In words: fifteen thousand nine
Ordinal: 15009th
Binary: 11101010100001
Octal: 35241
Hexadecimal: 0x3AA1
Base64: OqE=
One's complement: 50,526 (16-bit)
Scientific notation: 1.5009 × 10⁴
As a duration: 15,009 s = 4 hours, 10 minutes, 9 seconds

In other bases

ternary (3) 202120220

quaternary (4) 3222201

quinary (5) 440014

senary (6) 153253

septenary (7) 61521

nonary (9) 22526

undecimal (11) 10305

duodecimal (12) 8829

tridecimal (13) 6aa7

tetradecimal (14) 5681

pentadecimal (15) 46a9

As an angle

15,009° = 41 × 360° + 249°

249° ≈ 4.346 rad

Compass bearing: WSW (west-southwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ιεθʹ
Mayan (base 20): 𝋡·𝋱·𝋪·𝋩
Chinese: 一萬五千零九
Chinese (financial): 壹萬伍仟零玖

In other modern scripts

Eastern Arabic ١٥٠٠٩ Devanagari १५००९ Bengali ১৫০০৯ Tamil ௧௫௦௦௯ Thai ๑๕๐๐๙ Tibetan ༡༥༠༠༩ Khmer ១៥០០៩ Lao ໑໕໐໐໙ Burmese ၁၅၀၀၉

Digit at this position in famous constants

π — Pi (π): Digit 15,009 = 2
e — Euler's number (e): Digit 15,009 = 8
φ — Golden ratio (φ): Digit 15,009 = 4
√2 — Pythagoras's (√2): Digit 15,009 = 8
ln 2 — Natural log of 2: Digit 15,009 = 8
γ — Euler-Mascheroni (γ): Digit 15,009 = 2

Also seen as

Unicode codepoint

㪡

CJK Unified Ideograph-3Aa1

U+3AA1

Other letter (Lo)

UTF-8 encoding: E3 AA A1 (3 bytes).

Lookup U+3AA1 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#003AA1

RGB(0, 58, 161)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.58.161.

Address: 0.0.58.161
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.58.161

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

Musical pitch

Heard as a frequency, 15,009 Hz is closest to:

Concert pitch (A4 = 440 Hz): A♯9 (14917.2 Hz, +11¢)
Scientific pitch (C4 = 256 Hz): A♯9 (14596.5 Hz, +48¢ — about midway to B9)
Baroque pitch (A4 = 415 Hz): B9 (14906.3 Hz, +12¢)

Position in π

The digit sequence 15009 first appears in π at position 216,530 of the decimal expansion (the 216,530ordinal-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 15009 on Pi Search ↗