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7,442

7,442 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.).
Deficient Number Evil Number Recamán's Sequence Self Number

Properties

Parity
Even
Digit count
4
Digit sum
17
Digit product
224
Digital root
8
Palindrome
No
Bit width
13 bits
Reversed
2,447
Recamán's sequence
a(11,143) = 7,442
Square (n²)
55,383,364
Cube (n³)
412,162,994,888
Divisor count
6
σ(n) — sum of divisors
11,349
φ(n) — Euler's totient
3,660
Sum of prime factors
124

Primality

Prime factorization: 2 × 61 2

Nearest primes: 7,433 (−9) · 7,451 (+9)

Divisors & multiples

All divisors (6)
1 · 2 · 61 · 122 · 3721 (half) · 7442
Aliquot sum (sum of proper divisors): 3,907
Factor pairs (a × b = 7,442)
1 × 7442
2 × 3721
61 × 122
First multiples
7,442 · 14,884 (double) · 22,326 · 29,768 · 37,210 · 44,652 · 52,094 · 59,536 · 66,978 · 74,420

Sums & aliquot sequence

As a sum of two squares: 49² + 71² = 61² + 61²
As consecutive integers: 1,859 + 1,860 + 1,861 + 1,862 92 + 93 + … + 152
Aliquot sequence: 7,442 3,907 1 0 — terminates at zero

Representations

In words
seven thousand four hundred forty-two
Ordinal
7442nd
Binary
1110100010010
Octal
16422
Hexadecimal
0x1D12
Base64
HRI=
One's complement
58,093 (16-bit)
In other bases
ternary (3) 101012122
quaternary (4) 1310102
quinary (5) 214232
senary (6) 54242
septenary (7) 30461
nonary (9) 11178
undecimal (11) 5656
duodecimal (12) 4382
tridecimal (13) 3506
tetradecimal (14) 29d8
pentadecimal (15) 2312

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic
𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ζυμβʹ
Mayan (base 20)
𝋲·𝋬·𝋢
Chinese
七千四百四十二
Chinese (financial)
柒仟肆佰肆拾貳
In other modern scripts
Eastern Arabic ٧٤٤٢ Devanagari ७४४२ Bengali ৭৪৪২ Tamil ௭௪௪௨ Thai ๗๔๔๒ Tibetan ༧༤༤༢ Khmer ៧៤៤២ Lao ໗໔໔໒ Burmese ၇၄၄၂

Digit at this position in famous constants

π — Pi (π)
Digit 7,442 = 6
e — Euler's number (e)
Digit 7,442 = 3
φ — Golden ratio (φ)
Digit 7,442 = 9
√2 — Pythagoras's (√2)
Digit 7,442 = 4
ln 2 — Natural log of 2
Digit 7,442 = 5
γ — Euler-Mascheroni (γ)
Digit 7,442 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 7442, here are decompositions:

  • 31 + 7411 = 7442
  • 73 + 7369 = 7442
  • 109 + 7333 = 7442
  • 199 + 7243 = 7442
  • 223 + 7219 = 7442
  • 229 + 7213 = 7442
  • 283 + 7159 = 7442
  • 313 + 7129 = 7442

Showing the first eight; more decompositions exist.

Unicode codepoint
Latin Small Letter Sideways Open O
U+1D12
Lowercase letter (Ll)

UTF-8 encoding: E1 B4 92 (3 bytes).

Hex color
#001D12
RGB(0, 29, 18)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.29.18.

Address
0.0.29.18
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.29.18

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

Position in π

The digit sequence 7442 first appears in π at position 1,903 of the decimal expansion (the 1,903ordinal-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.