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42,104

42,104 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 Odious Number Pernicious Number Recamán's Sequence

Properties

Parity
Even
Digit count
5
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
16 bits
Reversed
40,124
Recamán's sequence
a(151,415) = 42,104
Square (n²)
1,772,746,816
Cube (n³)
74,639,731,940,864
Divisor count
16
σ(n) — sum of divisors
83,400
φ(n) — Euler's totient
19,872
Sum of prime factors
302

Primality

Prime factorization: 2 3 × 19 × 277

Nearest primes: 42,101 (−3) · 42,131 (+27)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 8 · 19 · 38 · 76 · 152 · 277 · 554 · 1108 · 2216 · 5263 · 10526 · 21052 (half) · 42104
Aliquot sum (sum of proper divisors): 41,296
Factor pairs (a × b = 42,104)
1 × 42104
2 × 21052
4 × 10526
8 × 5263
19 × 2216
38 × 1108
76 × 554
152 × 277
First multiples
42,104 · 84,208 (double) · 126,312 · 168,416 · 210,520 · 252,624 · 294,728 · 336,832 · 378,936 · 421,040

Sums & aliquot sequence

As consecutive integers: 2,624 + 2,625 + … + 2,639 2,207 + 2,208 + … + 2,225 14 + 15 + … + 290
Aliquot sequence: 42,104 41,296 42,404 31,810 25,466 21,190 20,138 10,072 8,828 6,628 4,978 2,942 1,474 974 490 536 484 — unresolved within range

Representations

In words
forty-two thousand one hundred four
Ordinal
42104th
Binary
1010010001111000
Octal
122170
Hexadecimal
0xA478
Base64
pHg=
One's complement
23,431 (16-bit)
In other bases
ternary (3) 2010202102
quaternary (4) 22101320
quinary (5) 2321404
senary (6) 522532
septenary (7) 233516
nonary (9) 63672
undecimal (11) 296a7
duodecimal (12) 20448
tridecimal (13) 1621a
tetradecimal (14) 114b6
pentadecimal (15) c71e

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβρδʹ
Mayan (base 20)
𝋥·𝋥·𝋥·𝋤
Chinese
四萬二千一百零四
Chinese (financial)
肆萬貳仟壹佰零肆
In other modern scripts
Eastern Arabic ٤٢١٠٤ Devanagari ४२१०४ Bengali ৪২১০৪ Tamil ௪௨௧௦௪ Thai ๔๒๑๐๔ Tibetan ༤༢༡༠༤ Khmer ៤២១០៤ Lao ໔໒໑໐໔ Burmese ၄၂၁၀၄

Digit at this position in famous constants

π — Pi (π)
Digit 42,104 = 5
e — Euler's number (e)
Digit 42,104 = 5
φ — Golden ratio (φ)
Digit 42,104 = 9
√2 — Pythagoras's (√2)
Digit 42,104 = 9
ln 2 — Natural log of 2
Digit 42,104 = 6
γ — Euler-Mascheroni (γ)
Digit 42,104 = 4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42104, here are decompositions:

  • 3 + 42101 = 42104
  • 31 + 42073 = 42104
  • 43 + 42061 = 42104
  • 61 + 42043 = 42104
  • 151 + 41953 = 42104
  • 157 + 41947 = 42104
  • 163 + 41941 = 42104
  • 193 + 41911 = 42104

Showing the first eight; more decompositions exist.

Unicode codepoint
Yi Syllable Yiep
U+A478
Other letter (Lo)

UTF-8 encoding: EA 91 B8 (3 bytes).

Hex color
#00A478
RGB(0, 164, 120)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.120.

Address
0.0.164.120
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.164.120

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

Position in π

The digit sequence 42104 first appears in π at position 166,211 of the decimal expansion (the 166,211ordinal-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.