Live analysis

10,442

10,442 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.).

10,442 (ten thousand four hundred forty-two) is an even 5-digit number. It is a composite number with 8 divisors, and factors as 2 × 23 × 227. Written other ways, in hexadecimal, 0x28CA.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

10,430 10,431 10,432 10,433 10,434 10,435 10,436 10,437 10,438 10,439 10,440 10,441 10,442 10,443 10,444 10,445 10,446 10,447 10,448 10,449 10,450 10,451 10,452 10,453 10,454

less more

Properties

Parity: Even
Digit count: 5
Digit sum: 11
Digit product: 0
Digital root: 2
Palindrome: No
Bit width: 14 bits
Reversed: 24,401
Recamán's sequence: a(50,635) = 10,442
Square (n²): 109,035,364
Cube (n³): 1,138,547,270,888
Divisor count: 8
σ(n) — sum of divisors: 16,416
φ(n) — Euler's totient: 4,972
Sum of prime factors: 252

Primality

Prime factorization: 2 × 23 × 227

Nearest primes: 10,433 (−9) · 10,453 (+11)

Divisors & multiples

All divisors (8)

1 · 2 · 23 · 46 · 227 · 454 · 5221 (half) · 10442

Aliquot sum (sum of proper divisors): 5,974

Factor pairs (a × b = 10,442)

1 × 10442

2 × 5221

23 × 454

46 × 227

First multiples

10,442 · 20,884 (double) · 31,326 · 41,768 · 52,210 · 62,652 · 73,094 · 83,536 · 93,978 · 104,420

Sums & aliquot sequence

As consecutive integers: 2,609 + 2,610 + 2,611 + 2,612 443 + 444 + … + 465 68 + 69 + … + 159

Aliquot sequence: 10,442 → 5,974 → 3,386 → 1,696 → 1,706 → 856 → 764 → 580 → 680 → 940 → 1,076 → 814 → 554 → 280 → 440 → 640 → 890 — unresolved within range

Continued fraction of √n

√10,442 = [102; (5, 2, 1, 2, 8, 1, 11, 7, 1, 3, 2, 8, 2, 3, 1, 7, 11, 1, 8, 2, 1, 2, 5, 204)]

Period length 24 — the block in parentheses repeats forever.

Representations

In words: ten thousand four hundred forty-two
Ordinal: 10442nd
Binary: 10100011001010
Octal: 24312
Hexadecimal: 0x28CA
Base64: KMo=
One's complement: 55,093 (16-bit)
Scientific notation: 1.0442 × 10⁴
As a duration: 10,442 s = 2 hours, 54 minutes, 2 seconds

In other bases

ternary (3) 112022202

quaternary (4) 2203022

quinary (5) 313232

senary (6) 120202

septenary (7) 42305

nonary (9) 15282

undecimal (11) 7933

duodecimal (12) 6062

tridecimal (13) 49a3

tetradecimal (14) 3b3c

pentadecimal (15) 3162

Palindromic in base 4

As an angle

10,442° = 29 × 360° + 2°

2° ≈ 0.035 rad

Compass bearing: N (north)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic: 𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ͵ιυμβʹ
Mayan (base 20): 𝋡·𝋦·𝋢·𝋢
Chinese: 一萬零四百四十二
Chinese (financial): 壹萬零肆佰肆拾貳

In other modern scripts

Eastern Arabic ١٠٤٤٢ Devanagari १०४४२ Bengali ১০৪৪২ Tamil ௧௦௪௪௨ Thai ๑๐๔๔๒ Tibetan ༡༠༤༤༢ Khmer ១០៤៤២ Lao ໑໐໔໔໒ Burmese ၁၀၄၄၂

Digit at this position in famous constants

π — Pi (π): Digit 10,442 = 7
e — Euler's number (e): Digit 10,442 = 5
φ — Golden ratio (φ): Digit 10,442 = 3
√2 — Pythagoras's (√2): Digit 10,442 = 8
ln 2 — Natural log of 2: Digit 10,442 = 4
γ — Euler-Mascheroni (γ): Digit 10,442 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 10442, here are decompositions:

13 + 10429 = 10442
43 + 10399 = 10442
73 + 10369 = 10442
109 + 10333 = 10442
139 + 10303 = 10442
199 + 10243 = 10442
283 + 10159 = 10442
331 + 10111 = 10442

Showing the first eight; more decompositions exist.

Unicode codepoint

⣊

Braille Pattern Dots-2478

U+28CA

Other symbol (So)

UTF-8 encoding: E2 A3 8A (3 bytes).

Lookup U+28CA on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0028CA

RGB(0, 40, 202)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.40.202.

Address: 0.0.40.202
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.40.202

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

Musical pitch

Heard as a frequency, 10,442 Hz is closest to:

Concert pitch (A4 = 440 Hz): E9 (10548.1 Hz, -17¢)
Scientific pitch (C4 = 256 Hz): E9 (10321.3 Hz, +20¢)
Baroque pitch (A4 = 415 Hz): F9 (10540.3 Hz, -16¢)

Position in π

The digit sequence 10442 first appears in π at position 132,324 of the decimal expansion (the 132,324ordinal-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 10442 on Pi Search ↗