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1,028,272

1,028,272 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.).

1,028,272 (one million twenty-eight thousand two hundred seventy-two) is an even 7-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 7 × 9,181. Its proper divisors sum to 1,248,864, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFB0B0.

Abundant Number Evil Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
2,728,201
Square (n²)
1,057,343,305,984
Cube (n³)
1,087,236,515,930,779,648
Divisor count
20
σ(n) — sum of divisors
2,277,136
φ(n) — Euler's totient
440,640
Sum of prime factors
9,196

Primality

Prime factorization: 2 4 × 7 × 9181

Nearest primes: 1,028,263 (−9) · 1,028,273 (+1)

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 7 · 8 · 14 · 16 · 28 · 56 · 112 · 9181 · 18362 · 36724 · 64267 · 73448 · 128534 · 146896 · 257068 · 514136 (half) · 1028272
Aliquot sum (sum of proper divisors): 1,248,864
Factor pairs (a × b = 1,028,272)
1 × 1028272
2 × 514136
4 × 257068
7 × 146896
8 × 128534
14 × 73448
16 × 64267
28 × 36724
56 × 18362
112 × 9181
First multiples
1,028,272 · 2,056,544 (double) · 3,084,816 · 4,113,088 · 5,141,360 · 6,169,632 · 7,197,904 · 8,226,176 · 9,254,448 · 10,282,720

Sums & aliquot sequence

As consecutive integers: 146,893 + 146,894 + … + 146,899 32,118 + 32,119 + … + 32,149 4,479 + 4,480 + … + 4,702
Aliquot sequence: 1,028,272 1,248,864 2,029,656 3,312,744 5,060,376 8,862,624 16,341,282 19,064,868 25,922,172 36,649,428 48,865,932 77,672,844 125,380,160 174,177,280 243,656,360 304,570,540 335,468,132 — unresolved within range

Continued fraction of √n

√1,028,272 = [1014; (26, 1, 2, 5, 1, 4, 1, 3, 2, 5, 1, 1, 2, 1, 3, 1, 42, 2, 1, 3, 6, 1, 288, 1, …)]

Period length 46 — the block in parentheses repeats forever.

Representations

In words
one million twenty-eight thousand two hundred seventy-two
Ordinal
1028272nd
Binary
11111011000010110000
Octal
3730260
Hexadecimal
0xFB0B0
Base64
D7Cw
One's complement
4,293,939,023 (32-bit)
Scientific notation
1.028272 × 10⁶
As a duration
1,028,272 s = 11 days, 21 hours, 37 minutes, 52 seconds
In other bases
ternary (3) 1221020112011
quaternary (4) 3323002300
quinary (5) 230401042
senary (6) 34012304
septenary (7) 11511610
nonary (9) 1836464
undecimal (11) 642613
duodecimal (12) 417094
tridecimal (13) 2a005b
tetradecimal (14) 1caa40
pentadecimal (15) 154a17

As an angle

1,028,272° = 2,856 × 360° + 112°
112° ≈ 1.955 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬八千二百七十二
Chinese (financial)
壹佰零貳萬捌仟貳佰柒拾貳
In other modern scripts
Eastern Arabic ١٠٢٨٢٧٢ Devanagari १०२८२७२ Bengali ১০২৮২৭২ Tamil ௧௦௨௮௨௭௨ Thai ๑๐๒๘๒๗๒ Tibetan ༡༠༢༨༢༧༢ Khmer ១០២៨២៧២ Lao ໑໐໒໘໒໗໒ Burmese ၁၀၂၈၂၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1028272, here are decompositions:

  • 29 + 1028243 = 1028272
  • 41 + 1028231 = 1028272
  • 59 + 1028213 = 1028272
  • 71 + 1028201 = 1028272
  • 83 + 1028189 = 1028272
  • 131 + 1028141 = 1028272
  • 173 + 1028099 = 1028272
  • 191 + 1028081 = 1028272

Showing the first eight; more decompositions exist.

Hex color
#0FB0B0
RGB(15, 176, 176)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.176.176.

Address
0.15.176.176
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.176.176

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 2, 8272 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8272-02-01 (DMMYYYY (Euro, single-digit day))
  • 8272-10-02 (MMDYYYY (US, single-digit day))
  • 8272-02-10 (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 1,028,272 and was likely granted around 1912.

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°.