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42,828

42,828 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.).
Abundant Number Arithmetic Number Evil Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
24
Digit product
1,024
Digital root
6
Palindrome
No
Bit width
16 bits
Reversed
82,824
Recamán's sequence
a(72,936) = 42,828
Square (n²)
1,834,237,584
Cube (n³)
78,556,727,247,552
Divisor count
24
σ(n) — sum of divisors
103,488
φ(n) — Euler's totient
13,776
Sum of prime factors
133

Primality

Prime factorization: 2 2 × 3 × 43 × 83

Nearest primes: 42,821 (−7) · 42,829 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 43 · 83 · 86 · 129 · 166 · 172 · 249 · 258 · 332 · 498 · 516 · 996 · 3569 · 7138 · 10707 · 14276 · 21414 (half) · 42828
Aliquot sum (sum of proper divisors): 60,660
Factor pairs (a × b = 42,828)
1 × 42828
2 × 21414
3 × 14276
4 × 10707
6 × 7138
12 × 3569
43 × 996
83 × 516
86 × 498
129 × 332
166 × 258
172 × 249
First multiples
42,828 · 85,656 (double) · 128,484 · 171,312 · 214,140 · 256,968 · 299,796 · 342,624 · 385,452 · 428,280

Sums & aliquot sequence

As consecutive integers: 14,275 + 14,276 + 14,277 5,350 + 5,351 + … + 5,357 1,773 + 1,774 + … + 1,796 975 + 976 + … + 1,017
Aliquot sequence: 42,828 60,660 123,888 210,912 388,848 615,800 816,400 1,309,332 1,745,804 1,323,724 1,095,476 862,732 802,484 675,916 539,172 905,544 1,547,166 — unresolved within range

Representations

In words
forty-two thousand eight hundred twenty-eight
Ordinal
42828th
Binary
1010011101001100
Octal
123514
Hexadecimal
0xA74C
Base64
p0w=
One's complement
22,707 (16-bit)
In other bases
ternary (3) 2011202020
quaternary (4) 22131030
quinary (5) 2332303
senary (6) 530140
septenary (7) 235602
nonary (9) 64666
undecimal (11) 2a1a5
duodecimal (12) 20950
tridecimal (13) 16656
tetradecimal (14) 11872
pentadecimal (15) ca53

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβωκηʹ
Mayan (base 20)
𝋥·𝋧·𝋡·𝋨
Chinese
四萬二千八百二十八
Chinese (financial)
肆萬貳仟捌佰貳拾捌
In other modern scripts
Eastern Arabic ٤٢٨٢٨ Devanagari ४२८२८ Bengali ৪২৮২৮ Tamil ௪௨௮௨௮ Thai ๔๒๘๒๘ Tibetan ༤༢༨༢༨ Khmer ៤២៨២៨ Lao ໔໒໘໒໘ Burmese ၄၂၈၂၈

Digit at this position in famous constants

π — Pi (π)
Digit 42,828 = 6
e — Euler's number (e)
Digit 42,828 = 1
φ — Golden ratio (φ)
Digit 42,828 = 3
√2 — Pythagoras's (√2)
Digit 42,828 = 0
ln 2 — Natural log of 2
Digit 42,828 = 9
γ — Euler-Mascheroni (γ)
Digit 42,828 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42828, here are decompositions:

  • 7 + 42821 = 42828
  • 31 + 42797 = 42828
  • 41 + 42787 = 42828
  • 61 + 42767 = 42828
  • 101 + 42727 = 42828
  • 109 + 42719 = 42828
  • 127 + 42701 = 42828
  • 131 + 42697 = 42828

Showing the first eight; more decompositions exist.

Unicode codepoint
Latin Capital Letter O With Loop
U+A74C
Uppercase letter (Lu)

UTF-8 encoding: EA 9D 8C (3 bytes).

Hex color
#00A74C
RGB(0, 167, 76)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.76.

Address
0.0.167.76
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.167.76

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

Position in π

The digit sequence 42828 first appears in π at position 35,476 of the decimal expansion (the 35,476ordinal-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.