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1,012,720

1,012,720 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.).

1,012,720 (one million twelve thousand seven hundred twenty) is an even 7-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 5 × 12,659. Its proper divisors sum to 1,342,040, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF73F0.

Abundant Number Arithmetic Number Gapful Number Odious Number Pernicious Number Refactorable Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
272,101
Square (n²)
1,025,601,798,400
Cube (n³)
1,038,647,453,275,648,000
Divisor count
20
σ(n) — sum of divisors
2,354,760
φ(n) — Euler's totient
405,056
Sum of prime factors
12,672

Primality

Prime factorization: 2 4 × 5 × 12659

Nearest primes: 1,012,717 (−3) · 1,012,721 (+1)

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 40 · 80 · 12659 · 25318 · 50636 · 63295 · 101272 · 126590 · 202544 · 253180 · 506360 (half) · 1012720
Aliquot sum (sum of proper divisors): 1,342,040
Factor pairs (a × b = 1,012,720)
1 × 1012720
2 × 506360
4 × 253180
5 × 202544
8 × 126590
10 × 101272
16 × 63295
20 × 50636
40 × 25318
80 × 12659
First multiples
1,012,720 · 2,025,440 (double) · 3,038,160 · 4,050,880 · 5,063,600 · 6,076,320 · 7,089,040 · 8,101,760 · 9,114,480 · 10,127,200

Sums & aliquot sequence

As consecutive integers: 202,542 + 202,543 + 202,544 + 202,545 + 202,546 31,632 + 31,633 + … + 31,663 6,250 + 6,251 + … + 6,409
Aliquot sequence: 1,012,720 1,342,040 2,109,640 3,003,440 4,616,608 4,580,132 3,489,244 3,172,124 2,515,516 1,905,572 1,440,988 1,229,204 921,910 1,067,450 975,202 487,604 431,440 — unresolved within range

Continued fraction of √n

√1,012,720 = [1006; (2, 1, 16, 4, 17, 1, 7, 1, 3, 3, 3, 1, 1, 3, 45, 2, 6, 7, 1, 13, 10, 23, 1, 6, …)]

Representations

In words
one million twelve thousand seven hundred twenty
Ordinal
1012720th
Binary
11110111001111110000
Octal
3671760
Hexadecimal
0xF73F0
Base64
D3Pw
One's complement
4,293,954,575 (32-bit)
Scientific notation
1.01272 × 10⁶
As a duration
1,012,720 s = 11 days, 17 hours, 18 minutes, 40 seconds
In other bases
ternary (3) 1220110012011
quaternary (4) 3313033300
quinary (5) 224401340
senary (6) 33412304
septenary (7) 11415352
nonary (9) 1813164
undecimal (11) 631965
duodecimal (12) 40a094
tridecimal (13) 295c57
tetradecimal (14) 1c50d2
pentadecimal (15) 1500ea

As an angle

1,012,720° = 2,813 × 360° + 40°
40° ≈ 0.698 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零一萬二千七百二十
Chinese (financial)
壹佰零壹萬貳仟柒佰貳拾
In other modern scripts
Eastern Arabic ١٠١٢٧٢٠ Devanagari १०१२७२० Bengali ১০১২৭২০ Tamil ௧௦௧௨௭௨௦ Thai ๑๐๑๒๗๒๐ Tibetan ༡༠༡༢༧༢༠ Khmer ១០១២៧២០ Lao ໑໐໑໒໗໒໐ Burmese ၁၀၁၂၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1012720, here are decompositions:

  • 3 + 1012717 = 1012720
  • 17 + 1012703 = 1012720
  • 29 + 1012691 = 1012720
  • 41 + 1012679 = 1012720
  • 83 + 1012637 = 1012720
  • 89 + 1012631 = 1012720
  • 101 + 1012619 = 1012720
  • 173 + 1012547 = 1012720

Showing the first eight; more decompositions exist.

Hex color
#0F73F0
RGB(15, 115, 240)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.115.240.

Address
0.15.115.240
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.115.240

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 1, 2720 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 2720-10-01 (MMDYYYY (US, single-digit day))
  • 2720-01-10 (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 1,012,720 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°.