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1,020,628

1,020,628 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.).

1,020,628 (one million twenty thousand six hundred twenty-eight) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 7 × 36,451. Its proper divisors sum to 1,020,684, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF92D4.

Abundant Number Cube-Free Happy Number Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
8,260,201
Square (n²)
1,041,681,514,384
Cube (n³)
1,063,169,320,662,713,152
Divisor count
12
σ(n) — sum of divisors
2,041,312
φ(n) — Euler's totient
437,400
Sum of prime factors
36,462

Primality

Prime factorization: 2 2 × 7 × 36451

Nearest primes: 1,020,619 (−9) · 1,020,631 (+3)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 7 · 14 · 28 · 36451 · 72902 · 145804 · 255157 · 510314 (half) · 1020628
Aliquot sum (sum of proper divisors): 1,020,684
Factor pairs (a × b = 1,020,628)
1 × 1020628
2 × 510314
4 × 255157
7 × 145804
14 × 72902
28 × 36451
First multiples
1,020,628 · 2,041,256 (double) · 3,061,884 · 4,082,512 · 5,103,140 · 6,123,768 · 7,144,396 · 8,165,024 · 9,185,652 · 10,206,280

Sums & aliquot sequence

As consecutive integers: 145,801 + 145,802 + … + 145,807 127,575 + 127,576 + … + 127,582 18,198 + 18,199 + … + 18,253
Aliquot sequence: 1,020,628 1,020,684 1,801,716 3,077,004 5,276,460 12,625,620 29,565,228 58,332,372 106,374,828 189,186,900 436,398,060 960,077,076 1,600,128,684 3,542,774,900 5,243,308,588 5,341,320,404 5,463,147,340 — unresolved within range

Continued fraction of √n

√1,020,628 = [1010; (3, 1, 4, 1, 3, 11, 6, 2, 33, 1, 3, 1, 1, 1, 2, 2, 673, 11, 2, 11, 3, 1, 2, 1, …)]

Representations

In words
one million twenty thousand six hundred twenty-eight
Ordinal
1020628th
Binary
11111001001011010100
Octal
3711324
Hexadecimal
0xF92D4
Base64
D5LU
One's complement
4,293,946,667 (32-bit)
Scientific notation
1.020628 × 10⁶
As a duration
1,020,628 s = 11 days, 19 hours, 30 minutes, 28 seconds
In other bases
ternary (3) 1220212001001
quaternary (4) 3321023110
quinary (5) 230130003
senary (6) 33513044
septenary (7) 11450410
nonary (9) 1825031
undecimal (11) 6378a4
duodecimal (12) 412784
tridecimal (13) 29972b
tetradecimal (14) 1c7d40
pentadecimal (15) 15261d

As an angle

1,020,628° = 2,835 × 360° + 28°
28° ≈ 0.489 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬零六百二十八
Chinese (financial)
壹佰零貳萬零陸佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٢٠٦٢٨ Devanagari १०२०६२८ Bengali ১০২০৬২৮ Tamil ௧௦௨௦௬௨௮ Thai ๑๐๒๐๖๒๘ Tibetan ༡༠༢༠༦༢༨ Khmer ១០២០៦២៨ Lao ໑໐໒໐໖໒໘ Burmese ၁၀၂၀၆၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020628, here are decompositions:

  • 29 + 1020599 = 1020628
  • 71 + 1020557 = 1020628
  • 137 + 1020491 = 1020628
  • 197 + 1020431 = 1020628
  • 227 + 1020401 = 1020628
  • 239 + 1020389 = 1020628
  • 359 + 1020269 = 1020628
  • 491 + 1020137 = 1020628

Showing the first eight; more decompositions exist.

Hex color
#0F92D4
RGB(15, 146, 212)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.146.212.

Address
0.15.146.212
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.146.212

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 2, 0628 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0628-02-01 (DMMYYYY (Euro, single-digit day))
  • 0628-10-02 (MMDYYYY (US, single-digit day))
  • 0628-02-10 (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 1,020,628 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°.