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1,042,628

1,042,628 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.).

1,042,628 (one million forty-two thousand six hundred twenty-eight) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 277 × 941. Written other ways, in hexadecimal, 0xFE8C4.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
8,262,401
Square (n²)
1,087,073,146,384
Cube (n³)
1,133,412,900,468,057,152
Divisor count
12
σ(n) — sum of divisors
1,833,132
φ(n) — Euler's totient
518,880
Sum of prime factors
1,222

Primality

Prime factorization: 2 2 × 277 × 941

Nearest primes: 1,042,619 (−9) · 1,042,631 (+3)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 277 · 554 · 941 · 1108 · 1882 · 3764 · 260657 · 521314 (half) · 1042628
Aliquot sum (sum of proper divisors): 790,504
Factor pairs (a × b = 1,042,628)
1 × 1042628
2 × 521314
4 × 260657
277 × 3764
554 × 1882
941 × 1108
First multiples
1,042,628 · 2,085,256 (double) · 3,127,884 · 4,170,512 · 5,213,140 · 6,255,768 · 7,298,396 · 8,341,024 · 9,383,652 · 10,426,280

Sums & aliquot sequence

As a sum of two squares: 242² + 992² = 632² + 802²
As consecutive integers: 130,325 + 130,326 + … + 130,332 3,626 + 3,627 + … + 3,902 638 + 639 + … + 1,578
Aliquot sequence: 1,042,628 790,504 953,336 844,864 876,240 2,068,884 3,221,856 7,206,408 14,939,352 25,521,588 40,925,772 67,972,108 54,194,244 82,739,532 111,168,868 88,634,904 141,880,296 — unresolved within range

Continued fraction of √n

√1,042,628 = [1021; (10, 1, 11, 1, 1, 5, 3, 1, 1, 4, 3, 1, 1, 6, 1, 1, 1, 1, 1, 10, 4, 5, 1, 9, …)]

Representations

In words
one million forty-two thousand six hundred twenty-eight
Ordinal
1042628th
Binary
11111110100011000100
Octal
3764304
Hexadecimal
0xFE8C4
Base64
D+jE
One's complement
4,293,924,667 (32-bit)
Scientific notation
1.042628 × 10⁶
As a duration
1,042,628 s = 12 days, 1 hour, 37 minutes, 8 seconds
In other bases
ternary (3) 1221222012212
quaternary (4) 3332203010
quinary (5) 231331003
senary (6) 34202552
septenary (7) 11601506
nonary (9) 1858185
undecimal (11) 652384
duodecimal (12) 423458
tridecimal (13) 2a6752
tetradecimal (14) 1d1d76
pentadecimal (15) 158dd8

As an angle

1,042,628° = 2,896 × 360° + 68°
68° ≈ 1.187 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零四萬二千六百二十八
Chinese (financial)
壹佰零肆萬貳仟陸佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٤٢٦٢٨ Devanagari १०४२६२८ Bengali ১০৪২৬২৮ Tamil ௧௦௪௨௬௨௮ Thai ๑๐๔๒๖๒๘ Tibetan ༡༠༤༢༦༢༨ Khmer ១០៤២៦២៨ Lao ໑໐໔໒໖໒໘ Burmese ၁၀၄၂၆၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042628, here are decompositions:

  • 19 + 1042609 = 1042628
  • 31 + 1042597 = 1042628
  • 109 + 1042519 = 1042628
  • 229 + 1042399 = 1042628
  • 271 + 1042357 = 1042628
  • 487 + 1042141 = 1042628
  • 541 + 1042087 = 1042628
  • 547 + 1042081 = 1042628

Showing the first eight; more decompositions exist.

Hex color
#0FE8C4
RGB(15, 232, 196)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.232.196.

Address
0.15.232.196
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.232.196

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 4, 2628 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2628-04-01 (DMMYYYY (Euro, single-digit day))
  • 2628-10-04 (MMDYYYY (US, single-digit day))
  • 2628-04-10 (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 1,042,628 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°.