Number

18,041

18,041 is a prime, odd.

Arithmetic Number Chen Prime Deficient Number Emirp Evil Number Happy Number Prime Pythagorean Prime Recamán's Sequence Sexy Prime Sophie Germain Prime Squarefree Twin Prime

Properties

Parity: Odd
Digit count: 5
Digit sum: 14
Digit product: 0
Digital root: 5
Palindrome: No
Bit width: 15 bits
Reversed: 14,081
Recamán's sequence: a(15,974) = 18,041
Square (n²): 325,477,681
Cube (n³): 5,871,942,842,921
Divisor count: 2
σ(n) — sum of divisors: 18,042
φ(n) — Euler's totient: 18,040

Primality

18,041 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 18041

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 18,041)

1 × 18041

First multiples

18,041 · 36,082 (double) · 54,123 · 72,164 · 90,205 · 108,246 · 126,287 · 144,328 · 162,369 · 180,410

Sums & aliquot sequence

As a sum of two squares: 85² + 104²

As consecutive integers: 9,020 + 9,021

Representations

In words: eighteen thousand forty-one
Ordinal: 18041st
Binary: 100011001111001
Octal: 43171
Hexadecimal: 0x4679
Base64: Rnk=
One's complement: 47,494 (16-bit)

In other bases

ternary (3) 220202012

quaternary (4) 10121321

quinary (5) 1034131

senary (6) 215305

septenary (7) 103412

nonary (9) 26665

undecimal (11) 12611

duodecimal (12) a535

tridecimal (13) 829a

tetradecimal (14) 6809

pentadecimal (15) 552b

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹 · 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺
Greek (Milesian): ͵ιημαʹ
Mayan (base 20): 𝋢·𝋥·𝋢·𝋡
Chinese: 一萬八千零四十一
Chinese (financial): 壹萬捌仟零肆拾壹

In other modern scripts

Eastern Arabic ١٨٠٤١ Devanagari १८०४१ Bengali ১৮০৪১ Tamil ௧௮௦௪௧ Thai ๑๘๐๔๑ Tibetan ༡༨༠༤༡ Khmer ១៨០៤១ Lao ໑໘໐໔໑ Burmese ၁၈၀၄၁

Digit at this position in famous constants

π — Pi (π): Digit 18,041 = 5
e — Euler's number (e): Digit 18,041 = 1
φ — Golden ratio (φ): Digit 18,041 = 0
√2 — Pythagoras's (√2): Digit 18,041 = 9
ln 2 — Natural log of 2: Digit 18,041 = 5
γ — Euler-Mascheroni (γ): Digit 18,041 = 2

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 18,013 (gap of 28)
Next prime: 18,043 (gap of 2)

Pair status: twin with 18043.

Unicode codepoint

䙹

CJK Unified Ideograph-4679

U+4679

Other letter (Lo)

UTF-8 encoding: E4 99 B9 (3 bytes).

Lookup U+4679 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#004679

RGB(0, 70, 121)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.70.121.

Address: 0.0.70.121
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.70.121

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

Position in π

The digit sequence 18041 first appears in π at position 115,814 of the decimal expansion (the 115,814ordinal-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 18041 on Pi Search ↗