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42,340

42,340 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 Odious Number Pernicious Number Practical Number Recamán's Sequence Self Number Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
16 bits
Reversed
4,324
Recamán's sequence
a(150,943) = 42,340
Square (n²)
1,792,675,600
Cube (n³)
75,901,884,904,000
Divisor count
24
σ(n) — sum of divisors
93,240
φ(n) — Euler's totient
16,128
Sum of prime factors
111

Primality

Prime factorization: 2 2 × 5 × 29 × 73

Nearest primes: 42,337 (−3) · 42,349 (+9)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 20 · 29 · 58 · 73 · 116 · 145 · 146 · 290 · 292 · 365 · 580 · 730 · 1460 · 2117 · 4234 · 8468 · 10585 · 21170 (half) · 42340
Aliquot sum (sum of proper divisors): 50,900
Factor pairs (a × b = 42,340)
1 × 42340
2 × 21170
4 × 10585
5 × 8468
10 × 4234
20 × 2117
29 × 1460
58 × 730
73 × 580
116 × 365
145 × 292
146 × 290
First multiples
42,340 · 84,680 (double) · 127,020 · 169,360 · 211,700 · 254,040 · 296,380 · 338,720 · 381,060 · 423,400

Sums & aliquot sequence

As a sum of two squares: 56² + 198² = 74² + 192² = 88² + 186² = 96² + 182²
As consecutive integers: 8,466 + 8,467 + 8,468 + 8,469 + 8,470 5,289 + 5,290 + … + 5,296 1,446 + 1,447 + … + 1,474 1,039 + 1,040 + … + 1,078
Aliquot sequence: 42,340 50,900 59,770 51,110 46,090 44,630 35,722 19,034 10,534 6,026 3,478 1,994 1,000 1,340 1,516 1,144 1,376 — unresolved within range

Representations

In words
forty-two thousand three hundred forty
Ordinal
42340th
Binary
1010010101100100
Octal
122544
Hexadecimal
0xA564
Base64
pWQ=
One's complement
23,195 (16-bit)
In other bases
ternary (3) 2011002011
quaternary (4) 22111210
quinary (5) 2323330
senary (6) 524004
septenary (7) 234304
nonary (9) 64064
undecimal (11) 298a1
duodecimal (12) 20604
tridecimal (13) 1636c
tetradecimal (14) 11604
pentadecimal (15) c82a

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵μβτμʹ
Mayan (base 20)
𝋥·𝋥·𝋱·𝋠
Chinese
四萬二千三百四十
Chinese (financial)
肆萬貳仟參佰肆拾
In other modern scripts
Eastern Arabic ٤٢٣٤٠ Devanagari ४२३४० Bengali ৪২৩৪০ Tamil ௪௨௩௪௦ Thai ๔๒๓๔๐ Tibetan ༤༢༣༤༠ Khmer ៤២៣៤០ Lao ໔໒໓໔໐ Burmese ၄၂၃၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 42,340 = 0
e — Euler's number (e)
Digit 42,340 = 4
φ — Golden ratio (φ)
Digit 42,340 = 7
√2 — Pythagoras's (√2)
Digit 42,340 = 2
ln 2 — Natural log of 2
Digit 42,340 = 2
γ — Euler-Mascheroni (γ)
Digit 42,340 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 42340, here are decompositions:

  • 3 + 42337 = 42340
  • 17 + 42323 = 42340
  • 41 + 42299 = 42340
  • 47 + 42293 = 42340
  • 59 + 42281 = 42340
  • 83 + 42257 = 42340
  • 101 + 42239 = 42340
  • 113 + 42227 = 42340

Showing the first eight; more decompositions exist.

Unicode codepoint
Vai Syllable Za
U+A564
Other letter (Lo)

UTF-8 encoding: EA 95 A4 (3 bytes).

Hex color
#00A564
RGB(0, 165, 100)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.100.

Address
0.0.165.100
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.165.100

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

Position in π

The digit sequence 42340 first appears in π at position 75,812 of the decimal expansion (the 75,812ordinal-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.