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1,013,280

1,013,280 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.).

1,013,280 (one million thirteen thousand two hundred eighty) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2⁵ × 3 × 5 × 2,111. Its proper divisors sum to 2,180,064, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF7620.

Abundant Number Arithmetic Number Evil Number Gapful Number Happy Number Harshad / Niven Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
823,101
Square (n²)
1,026,736,358,400
Cube (n³)
1,040,371,417,239,552,000
Divisor count
48
σ(n) — sum of divisors
3,193,344
φ(n) — Euler's totient
270,080
Sum of prime factors
2,129

Primality

Prime factorization: 2 5 × 3 × 5 × 2111

Nearest primes: 1,013,279 (−1) · 1,013,291 (+11)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 20 · 24 · 30 · 32 · 40 · 48 · 60 · 80 · 96 · 120 · 160 · 240 · 480 · 2111 · 4222 · 6333 · 8444 · 10555 · 12666 · 16888 · 21110 · 25332 · 31665 · 33776 · 42220 · 50664 · 63330 · 67552 · 84440 · 101328 · 126660 · 168880 · 202656 · 253320 · 337760 · 506640 (half) · 1013280
Aliquot sum (sum of proper divisors): 2,180,064
Factor pairs (a × b = 1,013,280)
1 × 1013280
2 × 506640
3 × 337760
4 × 253320
5 × 202656
6 × 168880
8 × 126660
10 × 101328
12 × 84440
15 × 67552
16 × 63330
20 × 50664
24 × 42220
30 × 33776
32 × 31665
40 × 25332
48 × 21110
60 × 16888
80 × 12666
96 × 10555
120 × 8444
160 × 6333
240 × 4222
480 × 2111
First multiples
1,013,280 · 2,026,560 (double) · 3,039,840 · 4,053,120 · 5,066,400 · 6,079,680 · 7,092,960 · 8,106,240 · 9,119,520 · 10,132,800

Sums & aliquot sequence

As consecutive integers: 337,759 + 337,760 + 337,761 202,654 + 202,655 + 202,656 + 202,657 + 202,658 67,545 + 67,546 + … + 67,559 15,801 + 15,802 + … + 15,864
Aliquot sequence: 1,013,280 2,180,064 3,542,856 5,522,904 10,019,556 15,307,746 15,385,854 18,496,770 27,329,790 41,715,330 62,756,094 62,937,474 63,642,846 63,642,858 64,348,278 64,348,290 110,104,830 — unresolved within range

Continued fraction of √n

√1,013,280 = [1006; (1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 2, 3, 1, 2, 1, 1, 2, 1, 4, 1, 7, 1, 8, 9, …)]

Representations

In words
one million thirteen thousand two hundred eighty
Ordinal
1013280th
Binary
11110111011000100000
Octal
3673040
Hexadecimal
0xF7620
Base64
D3Yg
One's complement
4,293,954,015 (32-bit)
Scientific notation
1.01328 × 10⁶
As a duration
1,013,280 s = 11 days, 17 hours, 28 minutes
In other bases
ternary (3) 1220110221220
quaternary (4) 3313120200
quinary (5) 224411110
senary (6) 33415040
septenary (7) 11420112
nonary (9) 1813856
undecimal (11) 632324
duodecimal (12) 40a480
tridecimal (13) 296298
tetradecimal (14) 1c53b2
pentadecimal (15) 150370

As an angle

1,013,280° = 2,814 × 360° + 240°
240° ≈ 4.189 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零一萬三千二百八十
Chinese (financial)
壹佰零壹萬參仟貳佰捌拾
In other modern scripts
Eastern Arabic ١٠١٣٢٨٠ Devanagari १०१३२८० Bengali ১০১৩২৮০ Tamil ௧௦௧௩௨௮௦ Thai ๑๐๑๓๒๘๐ Tibetan ༡༠༡༣༢༨༠ Khmer ១០១៣២៨០ Lao ໑໐໑໓໒໘໐ Burmese ၁၀၁၃၂၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1013280, here are decompositions:

  • 13 + 1013267 = 1013280
  • 17 + 1013263 = 1013280
  • 31 + 1013249 = 1013280
  • 41 + 1013239 = 1013280
  • 43 + 1013237 = 1013280
  • 53 + 1013227 = 1013280
  • 83 + 1013197 = 1013280
  • 127 + 1013153 = 1013280

Showing the first eight; more decompositions exist.

Hex color
#0F7620
RGB(15, 118, 32)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.118.32.

Address
0.15.118.32
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.118.32

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 1, 3280 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 3280-10-01 (MMDYYYY (US, single-digit day))
  • 3280-01-10 (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 1,013,280 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°.