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1,018,272

1,018,272 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.).

1,018,272 (one million eighteen thousand two hundred seventy-two) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 3 × 10,607. Its proper divisors sum to 1,654,944, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF89A0.

Abundant Number Arithmetic Number Gapful Number Odious Number Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
2,728,101
Square (n²)
1,036,877,865,984
Cube (n³)
1,055,823,698,351,259,648
Divisor count
24
σ(n) — sum of divisors
2,673,216
φ(n) — Euler's totient
339,392
Sum of prime factors
10,620

Primality

Prime factorization: 2 5 × 3 × 10607

Nearest primes: 1,018,271 (−1) · 1,018,291 (+19)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 16 · 24 · 32 · 48 · 96 · 10607 · 21214 · 31821 · 42428 · 63642 · 84856 · 127284 · 169712 · 254568 · 339424 · 509136 (half) · 1018272
Aliquot sum (sum of proper divisors): 1,654,944
Factor pairs (a × b = 1,018,272)
1 × 1018272
2 × 509136
3 × 339424
4 × 254568
6 × 169712
8 × 127284
12 × 84856
16 × 63642
24 × 42428
32 × 31821
48 × 21214
96 × 10607
First multiples
1,018,272 · 2,036,544 (double) · 3,054,816 · 4,073,088 · 5,091,360 · 6,109,632 · 7,127,904 · 8,146,176 · 9,164,448 · 10,182,720

Sums & aliquot sequence

As consecutive integers: 339,423 + 339,424 + 339,425 15,879 + 15,880 + … + 15,942 5,208 + 5,209 + … + 5,399
Aliquot sequence: 1,018,272 1,654,944 2,689,536 4,970,688 8,181,432 18,289,368 32,515,032 62,870,568 95,513,592 146,838,408 229,519,992 432,433,608 648,650,472 978,110,328 1,769,778,312 2,657,720,568 4,377,423,192 — unresolved within range

Continued fraction of √n

√1,018,272 = [1009; (10, 1, 1, 3, 3, 2, 3, 4, 2, 1, 2, 2, 1, 1, 2, 4, 1, 1, 4, 1, 2, 1, 1, 4, …)]

Representations

In words
one million eighteen thousand two hundred seventy-two
Ordinal
1018272nd
Binary
11111000100110100000
Octal
3704640
Hexadecimal
0xF89A0
Base64
D4mg
One's complement
4,293,949,023 (32-bit)
Scientific notation
1.018272 × 10⁶
As a duration
1,018,272 s = 11 days, 18 hours, 51 minutes, 12 seconds
In other bases
ternary (3) 1220201210210
quaternary (4) 3320212200
quinary (5) 230041042
senary (6) 33454120
septenary (7) 11440503
nonary (9) 1821723
undecimal (11) 636052
duodecimal (12) 411340
tridecimal (13) 298638
tetradecimal (14) 1c713a
pentadecimal (15) 151a9c

As an angle

1,018,272° = 2,828 × 360° + 192°
192° ≈ 3.351 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零一萬八千二百七十二
Chinese (financial)
壹佰零壹萬捌仟貳佰柒拾貳
In other modern scripts
Eastern Arabic ١٠١٨٢٧٢ Devanagari १०१८२७२ Bengali ১০১৮২৭২ Tamil ௧௦௧௮௨௭௨ Thai ๑๐๑๘๒๗๒ Tibetan ༡༠༡༨༢༧༢ Khmer ១០១៨២៧២ Lao ໑໐໑໘໒໗໒ Burmese ၁၀၁၈၂၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018272, here are decompositions:

  • 19 + 1018253 = 1018272
  • 71 + 1018201 = 1018272
  • 149 + 1018123 = 1018272
  • 163 + 1018109 = 1018272
  • 181 + 1018091 = 1018272
  • 251 + 1018021 = 1018272
  • 313 + 1017959 = 1018272
  • 349 + 1017923 = 1018272

Showing the first eight; more decompositions exist.

Hex color
#0F89A0
RGB(15, 137, 160)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.137.160.

Address
0.15.137.160
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.137.160

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 1, 8272 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 8272-10-01 (MMDYYYY (US, single-digit day))
  • 8272-01-10 (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 1,018,272 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°.