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1,047,628

1,047,628 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.).

1,047,628 (one million forty-seven thousand six hundred twenty-eight) is an even 7-digit number. It is a composite number with 12 divisors, and factors as 2² × 181 × 1,447. It is the 1,447th triangular number. Written other ways, in hexadecimal, 0xFFC4C.

Cube-Free Deficient Number Hexagonal Odious Number Pernicious Number Triangular

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
28
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
8,267,401
Square (n²)
1,097,524,426,384
Cube (n³)
1,149,797,319,763,817,152
Divisor count
12
σ(n) — sum of divisors
1,844,752
φ(n) — Euler's totient
520,560
Sum of prime factors
1,632

Primality

Prime factorization: 2 2 × 181 × 1447

Nearest primes: 1,047,589 (−39) · 1,047,647 (+19)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 181 · 362 · 724 · 1447 · 2894 · 5788 · 261907 · 523814 (half) · 1047628
Aliquot sum (sum of proper divisors): 797,124
Factor pairs (a × b = 1,047,628)
1 × 1047628
2 × 523814
4 × 261907
181 × 5788
362 × 2894
724 × 1447
First multiples
1,047,628 · 2,095,256 (double) · 3,142,884 · 4,190,512 · 5,238,140 · 6,285,768 · 7,333,396 · 8,381,024 · 9,428,652 · 10,476,280

Sums & aliquot sequence

As consecutive integers: 130,950 + 130,951 + … + 130,957 5,698 + 5,699 + … + 5,878 1 + 2 + … + 1,447
Aliquot sequence: 1,047,628 797,124 1,078,204 827,700 1,672,140 3,332,580 6,149,340 12,720,420 28,144,404 45,296,236 34,305,524 35,040,844 27,438,020 31,588,948 24,375,898 14,112,422 7,056,214 — unresolved within range

Continued fraction of √n

√1,047,628 = [1023; (1, 1, 6, 3, 1, 9, 1, 5, 1, 1, 4, 2, 3, 1, 3, 1, 2, 2, 52, 15, 2, 1, 2, 5, …)]

Representations

In words
one million forty-seven thousand six hundred twenty-eight
Ordinal
1047628th
Binary
11111111110001001100
Octal
3776114
Hexadecimal
0xFFC4C
Base64
D/xM
One's complement
4,293,919,667 (32-bit)
Scientific notation
1.047628 × 10⁶
As a duration
1,047,628 s = 12 days, 3 hours, 28 seconds
In other bases
ternary (3) 1222020002001
quaternary (4) 3333301030
quinary (5) 232011003
senary (6) 34242044
septenary (7) 11622211
nonary (9) 1866061
undecimal (11) 65610a
duodecimal (12) 426324
tridecimal (13) 2a8aca
tetradecimal (14) 1d3b08
pentadecimal (15) 15a61d

As an angle

1,047,628° = 2,910 × 360° + 28°
28° ≈ 0.489 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 · 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零四萬七千六百二十八
Chinese (financial)
壹佰零肆萬柒仟陸佰貳拾捌
In other modern scripts
Eastern Arabic ١٠٤٧٦٢٨ Devanagari १०४७६२८ Bengali ১০৪৭৬২৮ Tamil ௧௦௪௭௬௨௮ Thai ๑๐๔๗๖๒๘ Tibetan ༡༠༤༧༦༢༨ Khmer ១០៤៧៦២៨ Lao ໑໐໔໗໖໒໘ Burmese ၁၀၄၇၆၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1047628, here are decompositions:

  • 41 + 1047587 = 1047628
  • 89 + 1047539 = 1047628
  • 137 + 1047491 = 1047628
  • 149 + 1047479 = 1047628
  • 311 + 1047317 = 1047628
  • 317 + 1047311 = 1047628
  • 347 + 1047281 = 1047628
  • 389 + 1047239 = 1047628

Showing the first eight; more decompositions exist.

Hex color
#0FFC4C
RGB(15, 252, 76)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.252.76.

Address
0.15.252.76
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.252.76

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 4, 7628 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 7628-04-01 (DMMYYYY (Euro, single-digit day))
  • 7628-10-04 (MMDYYYY (US, single-digit day))
  • 7628-04-10 (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 1,047,628 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

  • Triangular numbers — 1, 3, 6, 10, 15 … the counting numbers stacked into triangles, and Gauss's famous shortcut for summing them.
  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.