Live analysis

10,018

10,018 is a composite number, even.

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.).

10,018 (ten thousand eighteen) is an even 5-digit number. It is a composite number with 4 divisors, and factors as 2 × 5,009. Written other ways, in hexadecimal, 0x2722.

Cube-Free Deficient Number Evil Number Flippable Recamán's Sequence Semiprime Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

10,006 10,007 10,008 10,009 10,010 10,011 10,012 10,013 10,014 10,015 10,016 10,017 10,018 10,019 10,020 10,021 10,022 10,023 10,024 10,025 10,026 10,027 10,028 10,029 10,030

less more

Properties

Parity: Even
Digit count: 5
Digit sum: 10
Digit product: 0
Digital root: 1
Palindrome: No
Bit width: 14 bits
Reversed: 81,001
Flips to (rotate 180°): 81,001
Recamán's sequence: a(5,295) = 10,018
Square (n²): 100,360,324
Cube (n³): 1,005,409,725,832
Divisor count: 4
σ(n) — sum of divisors: 15,030
φ(n) — Euler's totient: 5,008
Sum of prime factors: 5,011

Primality

Prime factorization: 2 × 5009

Nearest primes: 10,009 (−9) · 10,037 (+19)

Divisors & multiples

All divisors (4)

1 · 2 · 5009 (half) · 10018

Aliquot sum (sum of proper divisors): 5,012

Factor pairs (a × b = 10,018)

1 × 10018

2 × 5009

First multiples

10,018 · 20,036 (double) · 30,054 · 40,072 · 50,090 · 60,108 · 70,126 · 80,144 · 90,162 · 100,180

Sums & aliquot sequence

As a sum of two squares: 37² + 93²

As consecutive integers: 2,503 + 2,504 + 2,505 + 2,506

Aliquot sequence: 10,018 → 5,012 → 5,068 → 5,124 → 8,764 → 8,820 → 22,302 → 35,298 → 44,730 → 90,054 → 105,102 → 122,658 → 122,670 → 214,290 → 343,098 → 523,872 → 1,068,264 — unresolved within range

Continued fraction of √n

√10,018 = [100; (11, 8, 1, 1, 1, 1, 2, 1, 1, 2, 1, 13, 1, 1, 2, 1, 2, 2, 6, 28, 2, 3, 1, 3, …)]

Period length 56 — the block in parentheses repeats forever.

Representations

In words: ten thousand eighteen
Ordinal: 10018th
Binary: 10011100100010
Octal: 23442
Hexadecimal: 0x2722
Base64: JyI=
One's complement: 55,517 (16-bit)
Scientific notation: 1.0018 × 10⁴
As a duration: 10,018 s = 2 hours, 46 minutes, 58 seconds

In other bases

ternary (3) 111202001

quaternary (4) 2130202

quinary (5) 310033

senary (6) 114214

septenary (7) 41131

nonary (9) 14661

undecimal (11) 7588

duodecimal (12) 596a

tridecimal (13) 4738

tetradecimal (14) 3918

pentadecimal (15) 2e7d

As an angle

10,018° = 27 × 360° + 298°

298° ≈ 5.201 rad

Compass bearing: WNW (west-northwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ιιηʹ
Mayan (base 20): 𝋡·𝋥·𝋠·𝋲
Chinese: 一萬零一十八
Chinese (financial): 壹萬零壹拾捌

In other modern scripts

Eastern Arabic ١٠٠١٨ Devanagari १००१८ Bengali ১০০১৮ Tamil ௧௦௦௧௮ Thai ๑๐๐๑๘ Tibetan ༡༠༠༡༨ Khmer ១០០១៨ Lao ໑໐໐໑໘ Burmese ၁၀၀၁၈

Digit at this position in famous constants

π — Pi (π): Digit 10,018 = 8
e — Euler's number (e): Digit 10,018 = 4
φ — Golden ratio (φ): Digit 10,018 = 1
√2 — Pythagoras's (√2): Digit 10,018 = 8
ln 2 — Natural log of 2: Digit 10,018 = 9
γ — Euler-Mascheroni (γ): Digit 10,018 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 10018, here are decompositions:

11 + 10007 = 10018
89 + 9929 = 10018
131 + 9887 = 10018
167 + 9851 = 10018
179 + 9839 = 10018
227 + 9791 = 10018
251 + 9767 = 10018
269 + 9749 = 10018

Showing the first eight; more decompositions exist.

Unicode codepoint

✢

Four Teardrop-Spoked Asterisk

U+2722

Other symbol (So)

UTF-8 encoding: E2 9C A2 (3 bytes).

Lookup U+2722 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#002722

RGB(0, 39, 34)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.39.34.

Address: 0.0.39.34
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.39.34

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

Musical pitch

Heard as a frequency, 10,018 Hz is closest to:

Concert pitch (A4 = 440 Hz): D♯9 (9956.1 Hz, +11¢)
Scientific pitch (C4 = 256 Hz): D♯9 (9742 Hz, +48¢ — about midway to E9)
Baroque pitch (A4 = 415 Hz): E9 (9948.8 Hz, +12¢)

Position in π

The digit sequence 10018 first appears in π at position 31,833 of the decimal expansion (the 31,833ordinal-suffix:rd 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 10018 on Pi Search ↗