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1,012,800

1,012,800 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.).

1,012,800 (one million twelve thousand eight hundred) is an even 7-digit number. It is a composite number with 84 divisors, and factors as 2⁶ × 3 × 5² × 211. Its proper divisors sum to 2,325,776, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF7440.

Abundant Number Gapful Number Happy Number Harshad / Niven Odious Number Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
82,101
Square (n²)
1,025,763,840,000
Cube (n³)
1,038,893,617,152,000,000
Divisor count
84
σ(n) — sum of divisors
3,338,576
φ(n) — Euler's totient
268,800
Sum of prime factors
236

Primality

Prime factorization: 2 6 × 3 × 5 2 × 211

Nearest primes: 1,012,789 (−11) · 1,012,811 (+11)

Divisors & multiples

All divisors (84)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 20 · 24 · 25 · 30 · 32 · 40 · 48 · 50 · 60 · 64 · 75 · 80 · 96 · 100 · 120 · 150 · 160 · 192 · 200 · 211 · 240 · 300 · 320 · 400 · 422 · 480 · 600 · 633 · 800 · 844 · 960 · 1055 · 1200 · 1266 · 1600 · 1688 · 2110 · 2400 · 2532 · 3165 · 3376 · 4220 · 4800 · 5064 · 5275 · 6330 · 6752 · 8440 · 10128 · 10550 · 12660 · 13504 · 15825 · 16880 · 20256 · 21100 · 25320 · 31650 · 33760 · 40512 · 42200 · 50640 · 63300 · 67520 · 84400 · 101280 · 126600 · 168800 · 202560 · 253200 · 337600 · 506400 (half) · 1012800
Aliquot sum (sum of proper divisors): 2,325,776
Factor pairs (a × b = 1,012,800)
1 × 1012800
2 × 506400
3 × 337600
4 × 253200
5 × 202560
6 × 168800
8 × 126600
10 × 101280
12 × 84400
15 × 67520
16 × 63300
20 × 50640
24 × 42200
25 × 40512
30 × 33760
32 × 31650
40 × 25320
48 × 21100
50 × 20256
60 × 16880
64 × 15825
75 × 13504
80 × 12660
96 × 10550
100 × 10128
120 × 8440
150 × 6752
160 × 6330
192 × 5275
200 × 5064
211 × 4800
240 × 4220
300 × 3376
320 × 3165
400 × 2532
422 × 2400
480 × 2110
600 × 1688
633 × 1600
800 × 1266
844 × 1200
960 × 1055
First multiples
1,012,800 · 2,025,600 (double) · 3,038,400 · 4,051,200 · 5,064,000 · 6,076,800 · 7,089,600 · 8,102,400 · 9,115,200 · 10,128,000

Sums & aliquot sequence

As consecutive integers: 337,599 + 337,600 + 337,601 202,558 + 202,559 + 202,560 + 202,561 + 202,562 67,513 + 67,514 + … + 67,527 40,500 + 40,501 + … + 40,524
Aliquot sequence: 1,012,800 2,325,776 2,180,446 1,272,098 662,410 700,406 525,994 375,734 237,274 142,886 71,446 36,914 18,460 23,876 19,132 14,356 11,712 — unresolved within range

Continued fraction of √n

√1,012,800 = [1006; (2, 1, 1, 1, 2, 1, 2, 1, 3, 2, 7, 1, 50, 1, 2, 1, 2, 19, 1, 3, 4, 3, 1, 1, …)]

Representations

In words
one million twelve thousand eight hundred
Ordinal
1012800th
Binary
11110111010001000000
Octal
3672100
Hexadecimal
0xF7440
Base64
D3RA
One's complement
4,293,954,495 (32-bit)
Scientific notation
1.0128 × 10⁶
As a duration
1,012,800 s = 11 days, 17 hours, 20 minutes
In other bases
ternary (3) 1220110022010
quaternary (4) 3313101000
quinary (5) 224402200
senary (6) 33412520
septenary (7) 11415525
nonary (9) 1813263
undecimal (11) 631a28
duodecimal (12) 40a140
tridecimal (13) 295cb9
tetradecimal (14) 1c514c
pentadecimal (15) 150150

As an angle

1,012,800° = 2,813 × 360° + 120°
120° ≈ 2.094 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋 ·
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢
Chinese
一百零一萬二千八百
Chinese (financial)
壹佰零壹萬貳仟捌佰
In other modern scripts
Eastern Arabic ١٠١٢٨٠٠ Devanagari १०१२८०० Bengali ১০১২৮০০ Tamil ௧௦௧௨௮௦௦ Thai ๑๐๑๒๘๐๐ Tibetan ༡༠༡༢༨༠༠ Khmer ១០១២៨០០ Lao ໑໐໑໒໘໐໐ Burmese ၁၀၁၂၈၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1012800, here are decompositions:

  • 11 + 1012789 = 1012800
  • 29 + 1012771 = 1012800
  • 31 + 1012769 = 1012800
  • 37 + 1012763 = 1012800
  • 67 + 1012733 = 1012800
  • 79 + 1012721 = 1012800
  • 83 + 1012717 = 1012800
  • 97 + 1012703 = 1012800

Showing the first eight; more decompositions exist.

Hex color
#0F7440
RGB(15, 116, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.116.64.

Address
0.15.116.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.116.64

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 1, 2800 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 2800-10-01 (MMDYYYY (US, single-digit day))
  • 2800-01-10 (DDMYYYY (Euro, single-digit month))
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 1,012,800 and was likely granted around 1911.

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°.