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8,628,800

8,628,800 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.).

8,628,800 (eight million six hundred twenty-eight thousand eight hundred) is an even 7-digit number. It is a composite number with 42 divisors, and factors as 2⁶ × 5² × 5,393. Its proper divisors sum to 12,607,378, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x83AA40.

Abundant Number Evil Number Gapful Number Harshad / Niven Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
32
Digit product
0
Digital root
5
Palindrome
No
Bit width
24 bits
Reversed
88,268
Square (n²)
74,456,189,440,000
Divisor count
42
σ(n) — sum of divisors
21,236,178
φ(n) — Euler's totient
3,450,880
Sum of prime factors
5,415

Primality

Prime factorization: 2 6 × 5 2 × 5393

Nearest primes: 8,628,799 (−1) · 8,628,811 (+11)

Divisors & multiples

All divisors (42)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 25 · 32 · 40 · 50 · 64 · 80 · 100 · 160 · 200 · 320 · 400 · 800 · 1600 · 5393 · 10786 · 21572 · 26965 · 43144 · 53930 · 86288 · 107860 · 134825 · 172576 · 215720 · 269650 · 345152 · 431440 · 539300 · 862880 · 1078600 · 1725760 · 2157200 · 4314400 (half) · 8628800
Aliquot sum (sum of proper divisors): 12,607,378
Factor pairs (a × b = 8,628,800)
1 × 8628800
2 × 4314400
4 × 2157200
5 × 1725760
8 × 1078600
10 × 862880
16 × 539300
20 × 431440
25 × 345152
32 × 269650
40 × 215720
50 × 172576
64 × 134825
80 × 107860
100 × 86288
160 × 53930
200 × 43144
320 × 26965
400 × 21572
800 × 10786
1600 × 5393
First multiples
8,628,800 · 17,257,600 (double) · 25,886,400 · 34,515,200 · 43,144,000 · 51,772,800 · 60,401,600 · 69,030,400 · 77,659,200 · 86,288,000

Sums & aliquot sequence

As a sum of two squares: 320² + 2,920² = 1,496² + 2,528² = 2,008² + 2,144²
As consecutive integers: 1,725,758 + 1,725,759 + 1,725,760 + 1,725,761 + 1,725,762 345,140 + 345,141 + … + 345,164 67,349 + 67,350 + … + 67,476 13,163 + 13,164 + … + 13,802
Aliquot sequence: 8,628,800 12,607,378 9,089,966 4,557,778 2,424,494 1,301,074 650,540 840,292 648,524 493,540 542,936 475,084 368,220 783,924 1,045,260 2,125,908 3,248,006 — unresolved within range

Continued fraction of √n

√8,628,800 = [2937; (2, 13, 3, 10, 1, 19, 2, 2, 1, 1, 30, 5, 1, 2, 2, 1, 1, 2, 18, 1, 15, 2, 2, 2, …)]

Representations

In words
eight million six hundred twenty-eight thousand eight hundred
Ordinal
8628800th
Binary
100000111010101001000000
Octal
40725100
Hexadecimal
0x83AA40
Base64
g6pA
One's complement
4,286,338,495 (32-bit)
Scientific notation
8.6288 × 10⁶
As a duration
8,628,800 s = 99 days, 20 hours, 53 minutes, 20 seconds
In other bases
ternary (3) 121020101111012
quaternary (4) 200322221000
quinary (5) 4202110200
senary (6) 504540052
septenary (7) 133225565
nonary (9) 17211435
undecimal (11) 4963a44
duodecimal (12) 2a81628
tridecimal (13) 1a316cb
tetradecimal (14) 120886c
pentadecimal (15) b56a35

As an angle

8,628,800° = 23,968 × 360° + 320°
320° ≈ 5.585 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓁨𓁨𓁨𓁨𓁨𓁨𓁨𓁨𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
Chinese
八百六十二萬八千八百
Chinese (financial)
捌佰陸拾貳萬捌仟捌佰
In other modern scripts
Eastern Arabic ٨٦٢٨٨٠٠ Devanagari ८६२८८०० Bengali ৮৬২৮৮০০ Tamil ௮௬௨௮௮௦௦ Thai ๘๖๒๘๘๐๐ Tibetan ༨༦༢༨༨༠༠ Khmer ៨៦២៨៨០០ Lao ໘໖໒໘໘໐໐ Burmese ၈၆၂၈၈၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 8628800, here are decompositions:

  • 13 + 8628787 = 8628800
  • 73 + 8628727 = 8628800
  • 139 + 8628661 = 8628800
  • 157 + 8628643 = 8628800
  • 199 + 8628601 = 8628800
  • 307 + 8628493 = 8628800
  • 337 + 8628463 = 8628800
  • 379 + 8628421 = 8628800

Showing the first eight; more decompositions exist.

Hex color
#83AA40
RGB(131, 170, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.131.170.64.

Address
0.131.170.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.131.170.64

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 8,628,800 and was likely granted around 2014.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

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