Number

18,133

18,133 is a prime, odd.

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

Properties

Parity: Odd
Digit count: 5
Digit sum: 16
Digit product: 72
Digital root: 7
Palindrome: No
Bit width: 15 bits
Reversed: 33,181
Recamán's sequence: a(15,578) = 18,133
Square (n²): 328,805,689
Cube (n³): 5,962,233,558,637
Divisor count: 2
σ(n) — sum of divisors: 18,134
φ(n) — Euler's totient: 18,132

Primality

18,133 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 18133

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 18,133)

1 × 18133

First multiples

18,133 · 36,266 (double) · 54,399 · 72,532 · 90,665 · 108,798 · 126,931 · 145,064 · 163,197 · 181,330

Sums & aliquot sequence

As a sum of two squares: 57² + 122²

As consecutive integers: 9,066 + 9,067

Representations

In words: eighteen thousand one hundred thirty-three
Ordinal: 18133rd
Binary: 100011011010101
Octal: 43325
Hexadecimal: 0x46D5
Base64: RtU=
One's complement: 47,402 (16-bit)

In other bases

ternary (3) 220212121

quaternary (4) 10123111

quinary (5) 1040013

senary (6) 215541

septenary (7) 103603

nonary (9) 26777

undecimal (11) 12695

duodecimal (12) a5b1

tridecimal (13) 833b

tetradecimal (14) 6873

pentadecimal (15) 558d

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹 𒁹𒁹 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian): ͵ιηρλγʹ
Mayan (base 20): 𝋢·𝋥·𝋦·𝋭
Chinese: 一萬八千一百三十三
Chinese (financial): 壹萬捌仟壹佰參拾參

In other modern scripts

Eastern Arabic ١٨١٣٣ Devanagari १८१३३ Bengali ১৮১৩৩ Tamil ௧௮௧௩௩ Thai ๑๘๑๓๓ Tibetan ༡༨༡༣༣ Khmer ១៨១៣៣ Lao ໑໘໑໓໓ Burmese ၁၈၁၃၃

Digit at this position in famous constants

π — Pi (π): Digit 18,133 = 0
e — Euler's number (e): Digit 18,133 = 5
φ — Golden ratio (φ): Digit 18,133 = 8
√2 — Pythagoras's (√2): Digit 18,133 = 3
ln 2 — Natural log of 2: Digit 18,133 = 0
γ — Euler-Mascheroni (γ): Digit 18,133 = 2

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 18,131 (gap of 2)
Next prime: 18,143 (gap of 10)

Pair status: twin with 18131.

Unicode codepoint

䛕

CJK Unified Ideograph-46D5

U+46D5

Other letter (Lo)

UTF-8 encoding: E4 9B 95 (3 bytes).

Lookup U+46D5 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0046D5

RGB(0, 70, 213)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.213.

Address: 0.0.70.213
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.70.213

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

Position in π

The digit sequence 18133 first appears in π at position 146,931 of the decimal expansion (the 146,931ordinal-suffix:st 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 18133 on Pi Search ↗