Number

11,489

11,489 is a prime, odd.

11,489 (eleven thousand four hundred eighty-nine) is an odd 5-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x2CE1.

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

Interestingness

★ ★ ★ ★ ★

10 notable facts · grade A

11,477 11,478 11,479 11,480 11,481 11,482 11,483 11,484 11,485 11,486 11,487 11,488 11,489 11,490 11,491 11,492 11,493 11,494 11,495 11,496 11,497 11,498 11,499 11,500 11,501

less more

Properties

Parity: Odd
Digit count: 5
Digit sum: 23
Digit product: 288
Digital root: 5
Palindrome: No
Bit width: 14 bits
Reversed: 98,411
Recamán's sequence: a(92,994) = 11,489
Square (n²): 131,997,121
Cube (n³): 1,516,514,923,169
Divisor count: 2
σ(n) — sum of divisors: 11,490
φ(n) — Euler's totient: 11,488

Primality

11,489 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 11489

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 11,489)

1 × 11489

First multiples

11,489 · 22,978 (double) · 34,467 · 45,956 · 57,445 · 68,934 · 80,423 · 91,912 · 103,401 · 114,890

Sums & aliquot sequence

As a sum of two squares: 55² + 92²

As consecutive integers: 5,744 + 5,745

Continued fraction of √n

√11,489 = [107; (5, 2, 1, 4, 1, 1, 5, 1, 1, 2, 1, 3, 9, 19, 2, 1, 1, 1, 2, 6, 3, 7, 13, 3, …)]

Representations

In words: eleven thousand four hundred eighty-nine
Ordinal: 11489th
Binary: 10110011100001
Octal: 26341
Hexadecimal: 0x2CE1
Base64: LOE=
One's complement: 54,046 (16-bit)
Scientific notation: 1.1489 × 10⁴
As a duration: 11,489 s = 3 hours, 11 minutes, 29 seconds

In other bases

ternary (3) 120202112

quaternary (4) 2303201

quinary (5) 331424

senary (6) 125105

septenary (7) 45332

nonary (9) 16675

undecimal (11) 86a5

duodecimal (12) 6795

tridecimal (13) 52ca

tetradecimal (14) 4289

pentadecimal (15) 360e

As an angle

11,489° = 31 × 360° + 329°

329° ≈ 5.742 rad

Compass bearing: NNW (north-northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹 𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ιαυπθʹ
Mayan (base 20): 𝋡·𝋨·𝋮·𝋩
Chinese: 一萬一千四百八十九
Chinese (financial): 壹萬壹仟肆佰捌拾玖

In other modern scripts

Eastern Arabic ١١٤٨٩ Devanagari ११४८९ Bengali ১১৪৮৯ Tamil ௧௧௪௮௯ Thai ๑๑๔๘๙ Tibetan ༡༡༤༨༩ Khmer ១១៤៨៩ Lao ໑໑໔໘໙ Burmese ၁၁၄၈၉

Digit at this position in famous constants

π — Pi (π): Digit 11,489 = 6
e — Euler's number (e): Digit 11,489 = 9
φ — Golden ratio (φ): Digit 11,489 = 4
√2 — Pythagoras's (√2): Digit 11,489 = 8
ln 2 — Natural log of 2: Digit 11,489 = 0
γ — Euler-Mascheroni (γ): Digit 11,489 = 8

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 11,483 (gap of 6)
Next prime: 11,491 (gap of 2)

Pair status: twin with 11491, sexy with 11483.

Unicode codepoint

ⳡ

Coptic Small Letter Old Nubian Nyi

U+2CE1

Lowercase letter (Ll)

UTF-8 encoding: E2 B3 A1 (3 bytes).

Lookup U+2CE1 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#002CE1

RGB(0, 44, 225)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.44.225.

Address: 0.0.44.225
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.44.225

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

Musical pitch

Heard as a frequency, 11,489 Hz is closest to:

Concert pitch (A4 = 440 Hz): F9 (11175.3 Hz, +48¢ — about midway to F♯9)
Scientific pitch (C4 = 256 Hz): F♯9 (11585.2 Hz, -14¢)
Baroque pitch (A4 = 415 Hz): F♯9 (11167.1 Hz, +49¢ — about midway to G9)

Position in π

The digit sequence 11489 first appears in π at position 242,889 of the decimal expansion (the 242,889ordinal-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 11489 on Pi Search ↗