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42,036

42,036 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.).

42,036 (forty-two thousand thirty-six) is an even 5-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 31 × 113. Its proper divisors sum to 60,108, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xA434.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
5
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
16 bits
Reversed
63,024
Recamán's sequence
a(151,551) = 42,036
Square (n²)
1,767,025,296
Cube (n³)
74,278,675,342,656
Divisor count
24
σ(n) — sum of divisors
102,144
φ(n) — Euler's totient
13,440
Sum of prime factors
151

Primality

Prime factorization: 2 2 × 3 × 31 × 113

Nearest primes: 42,023 (−13) · 42,043 (+7)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 31 · 62 · 93 · 113 · 124 · 186 · 226 · 339 · 372 · 452 · 678 · 1356 · 3503 · 7006 · 10509 · 14012 · 21018 (half) · 42036
Aliquot sum (sum of proper divisors): 60,108
Factor pairs (a × b = 42,036)
1 × 42036
2 × 21018
3 × 14012
4 × 10509
6 × 7006
12 × 3503
31 × 1356
62 × 678
93 × 452
113 × 372
124 × 339
186 × 226
First multiples
42,036 · 84,072 (double) · 126,108 · 168,144 · 210,180 · 252,216 · 294,252 · 336,288 · 378,324 · 420,360

Sums & aliquot sequence

As consecutive integers: 14,011 + 14,012 + 14,013 5,251 + 5,252 + … + 5,258 1,740 + 1,741 + … + 1,763 1,341 + 1,342 + … + 1,371
Aliquot sequence: 42,036 60,108 80,172 136,044 207,936 421,095 264,345 158,631 96,729 39,111 13,041 10,191 3,889 1 0 — terminates at zero

Continued fraction of √n

√42,036 = [205; (37, 3, 1, 1, 1, 2, 1, 3, 27, 14, 1, 1, 1, 1, 4, 2, 1, 24, 1, 15, 2, 3, 1, 2, …)]

Period length 60 — the block in parentheses repeats forever.

Representations

In words
forty-two thousand thirty-six
Ordinal
42036th
Binary
1010010000110100
Octal
122064
Hexadecimal
0xA434
Base64
pDQ=
One's complement
23,499 (16-bit)
Scientific notation
4.2036 × 10⁴
As a duration
42,036 s = 11 hours, 40 minutes, 36 seconds
In other bases
ternary (3) 2010122220
quaternary (4) 22100310
quinary (5) 2321121
senary (6) 522340
septenary (7) 233361
nonary (9) 63586
undecimal (11) 29645
duodecimal (12) 203b0
tridecimal (13) 16197
tetradecimal (14) 11468
pentadecimal (15) c6c6

As an angle

42,036° = 116 × 360° + 276°
276° ≈ 4.817 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβλϛʹ
Mayan (base 20)
𝋥·𝋥·𝋡·𝋰
Chinese
四萬二千零三十六
Chinese (financial)
肆萬貳仟零參拾陸
In other modern scripts
Eastern Arabic ٤٢٠٣٦ Devanagari ४२०३६ Bengali ৪২০৩৬ Tamil ௪௨௦௩௬ Thai ๔๒๐๓๖ Tibetan ༤༢༠༣༦ Khmer ៤២០៣៦ Lao ໔໒໐໓໖ Burmese ၄၂၀၃၆

Digit at this position in famous constants

π — Pi (π)
Digit 42,036 = 7
e — Euler's number (e)
Digit 42,036 = 2
φ — Golden ratio (φ)
Digit 42,036 = 7
√2 — Pythagoras's (√2)
Digit 42,036 = 8
ln 2 — Natural log of 2
Digit 42,036 = 9
γ — Euler-Mascheroni (γ)
Digit 42,036 = 5

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42036, here are decompositions:

  • 13 + 42023 = 42036
  • 17 + 42019 = 42036
  • 19 + 42017 = 42036
  • 23 + 42013 = 42036
  • 37 + 41999 = 42036
  • 53 + 41983 = 42036
  • 67 + 41969 = 42036
  • 79 + 41957 = 42036

Showing the first eight; more decompositions exist.

Unicode codepoint
Yi Syllable Njip
U+A434
Other letter (Lo)

UTF-8 encoding: EA 90 B4 (3 bytes).

Hex color
#00A434
RGB(0, 164, 52)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.52.

Address
0.0.164.52
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.164.52

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

Position in π

The digit sequence 42036 first appears in π at position 165,085 of the decimal expansion (the 165,085ordinal-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.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.