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64,000

64,000 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 Evil Number Harshad / Niven Perfect Cube Powerful Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
16 bits
Reversed
46
Recamán's sequence
a(286,900) = 64,000
Square (n²)
4,096,000,000
Cube (n³)
262,144,000,000,000
Cube root (∛n)
40
Divisor count
40
σ(n) — sum of divisors
159,588
φ(n) — Euler's totient
25,600
Sum of prime factors
33

Primality

Prime factorization: 2 9 × 5 3

Nearest primes: 63,997 (−3) · 64,007 (+7)

Divisors & multiples

All divisors (40)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 25 · 32 · 40 · 50 · 64 · 80 · 100 · 125 · 128 · 160 · 200 · 250 · 256 · 320 · 400 · 500 · 512 · 640 · 800 · 1000 · 1280 · 1600 · 2000 · 2560 · 3200 · 4000 · 6400 · 8000 · 12800 · 16000 · 32000 (half) · 64000
Aliquot sum (sum of proper divisors): 95,588
Factor pairs (a × b = 64,000)
1 × 64000
2 × 32000
4 × 16000
5 × 12800
8 × 8000
10 × 6400
16 × 4000
20 × 3200
25 × 2560
32 × 2000
40 × 1600
50 × 1280
64 × 1000
80 × 800
100 × 640
125 × 512
128 × 500
160 × 400
200 × 320
250 × 256
First multiples
64,000 · 128,000 (double) · 192,000 · 256,000 · 320,000 · 384,000 · 448,000 · 512,000 · 576,000 · 640,000

Sums & aliquot sequence

As a sum of two squares: 80² + 240² = 144² + 208²
As consecutive integers: 12,798 + 12,799 + 12,800 + 12,801 + 12,802 2,548 + 2,549 + … + 2,572 450 + 451 + … + 574
Aliquot sequence: 64,000 95,588 79,132 61,764 82,380 148,452 204,348 272,492 252,592 236,836 177,634 88,820 97,744 97,556 79,264 76,850 73,810 — unresolved within range

Representations

In words
sixty-four thousand
Ordinal
64000th
Binary
1111101000000000
Octal
175000
Hexadecimal
0xFA00
Base64
+gA=
One's complement
1,535 (16-bit)
In other bases
ternary (3) 10020210101
quaternary (4) 33220000
quinary (5) 4022000
senary (6) 1212144
septenary (7) 354406
nonary (9) 106711
undecimal (11) 440a2
duodecimal (12) 31054
tridecimal (13) 23191
tetradecimal (14) 19476
pentadecimal (15) 13e6a

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼
Greek (Milesian)
͵ξδ
Mayan (base 20)
𝋨·𝋠·𝋠·𝋠
Chinese
六萬四千
Chinese (financial)
陸萬肆仟
In other modern scripts
Eastern Arabic ٦٤٠٠٠ Devanagari ६४००० Bengali ৬৪০০০ Tamil ௬௪௦௦௦ Thai ๖๔๐๐๐ Tibetan ༦༤༠༠༠ Khmer ៦៤០០០ Lao ໖໔໐໐໐ Burmese ၆၄၀၀၀

Digit at this position in famous constants

π — Pi (π)
Digit 64,000 = 9
e — Euler's number (e)
Digit 64,000 = 2
φ — Golden ratio (φ)
Digit 64,000 = 8
√2 — Pythagoras's (√2)
Digit 64,000 = 8
ln 2 — Natural log of 2
Digit 64,000 = 9
γ — Euler-Mascheroni (γ)
Digit 64,000 = 1

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 64000, here are decompositions:

  • 3 + 63997 = 64000
  • 23 + 63977 = 64000
  • 71 + 63929 = 64000
  • 137 + 63863 = 64000
  • 191 + 63809 = 64000
  • 197 + 63803 = 64000
  • 227 + 63773 = 64000
  • 239 + 63761 = 64000

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Compatibility Ideograph-Fa00
U+FA00
Other letter (Lo)

UTF-8 encoding: EF A8 80 (3 bytes).

Hex color
#00FA00
RGB(0, 250, 0)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.250.0.

Address
0.0.250.0
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.250.0

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

Position in π

The digit sequence 64000 first appears in π at position 37,320 of the decimal expansion (the 37,320ordinal-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.