Live analysis

10,142

10,142 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.).

10,142 (ten thousand one hundred forty-two) is an even 5-digit number. It is a composite number with 8 divisors, and factors as 2 × 11 × 461. Written other ways, in hexadecimal, 0x279E.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

10,130 10,131 10,132 10,133 10,134 10,135 10,136 10,137 10,138 10,139 10,140 10,141 10,142 10,143 10,144 10,145 10,146 10,147 10,148 10,149 10,150 10,151 10,152 10,153 10,154

less more

Properties

Parity: Even
Digit count: 5
Digit sum: 8
Digit product: 0
Digital root: 8
Palindrome: No
Bit width: 14 bits
Reversed: 24,101
Recamán's sequence: a(5,543) = 10,142
Square (n²): 102,860,164
Cube (n³): 1,043,207,783,288
Divisor count: 8
σ(n) — sum of divisors: 16,632
φ(n) — Euler's totient: 4,600
Sum of prime factors: 474

Primality

Prime factorization: 2 × 11 × 461

Nearest primes: 10,141 (−1) · 10,151 (+9)

Divisors & multiples

All divisors (8)

1 · 2 · 11 · 22 · 461 · 922 · 5071 (half) · 10142

Aliquot sum (sum of proper divisors): 6,490

Factor pairs (a × b = 10,142)

1 × 10142

2 × 5071

11 × 922

22 × 461

First multiples

10,142 · 20,284 (double) · 30,426 · 40,568 · 50,710 · 60,852 · 70,994 · 81,136 · 91,278 · 101,420

Sums & aliquot sequence

As consecutive integers: 2,534 + 2,535 + 2,536 + 2,537 917 + 918 + … + 927 209 + 210 + … + 252

Aliquot sequence: 10,142 → 6,490 → 6,470 → 5,194 → 4,040 → 5,140 → 5,696 → 5,734 → 3,194 → 1,600 → 2,337 → 1,023 → 513 → 287 → 49 → 8 → 7 — unresolved within range

Continued fraction of √n

√10,142 = [100; (1, 2, 2, 2, 1, 1, 2, 1, 2, 1, 1, 8, 1, 1, 2, 1, 2, 1, 1, 2, 2, 2, 1, 200)]

Period length 24 — the block in parentheses repeats forever.

Representations

In words: ten thousand one hundred forty-two
Ordinal: 10142nd
Binary: 10011110011110
Octal: 23636
Hexadecimal: 0x279E
Base64: J54=
One's complement: 55,393 (16-bit)
Scientific notation: 1.0142 × 10⁴
As a duration: 10,142 s = 2 hours, 49 minutes, 2 seconds

In other bases

ternary (3) 111220122

quaternary (4) 2132132

quinary (5) 311032

senary (6) 114542

septenary (7) 41366

nonary (9) 14818

undecimal (11) 7690

duodecimal (12) 5a52

tridecimal (13) 4802

tetradecimal (14) 39a6

pentadecimal (15) 3012

As an angle

10,142° = 28 × 360° + 62°

62° ≈ 1.082 rad

Compass bearing: ENE (east-northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic: 𓂍𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵ιρμβʹ
Mayan (base 20): 𝋡·𝋥·𝋧·𝋢
Chinese: 一萬零一百四十二
Chinese (financial): 壹萬零壹佰肆拾貳

In other modern scripts

Eastern Arabic ١٠١٤٢ Devanagari १०१४२ Bengali ১০১৪২ Tamil ௧௦௧௪௨ Thai ๑๐๑๔๒ Tibetan ༡༠༡༤༢ Khmer ១០១៤២ Lao ໑໐໑໔໒ Burmese ၁၀၁၄၂

Digit at this position in famous constants

π — Pi (π): Digit 10,142 = 3
e — Euler's number (e): Digit 10,142 = 7
φ — Golden ratio (φ): Digit 10,142 = 2
√2 — Pythagoras's (√2): Digit 10,142 = 9
ln 2 — Natural log of 2: Digit 10,142 = 6
γ — Euler-Mascheroni (γ): Digit 10,142 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 10142, here are decompositions:

3 + 10139 = 10142
31 + 10111 = 10142
43 + 10099 = 10142
73 + 10069 = 10142
103 + 10039 = 10142
193 + 9949 = 10142
211 + 9931 = 10142
241 + 9901 = 10142

Showing the first eight; more decompositions exist.

Unicode codepoint

➞

Heavy Triangle-Headed Rightwards Arrow

U+279E

Other symbol (So)

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

Lookup U+279E on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00279E

RGB(0, 39, 158)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.39.158.

Address: 0.0.39.158
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.39.158

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

Musical pitch

Heard as a frequency, 10,142 Hz is closest to:

Concert pitch (A4 = 440 Hz): D♯9 (9956.1 Hz, +32¢)
Scientific pitch (C4 = 256 Hz): E9 (10321.3 Hz, -30¢)
Baroque pitch (A4 = 415 Hz): E9 (9948.8 Hz, +33¢)

Position in π

The digit sequence 10142 first appears in π at position 25,744 of the decimal expansion (the 25,744ordinal-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 10142 on Pi Search ↗