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130,628

130,628 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.).

130,628 (one hundred thirty thousand six hundred twenty-eight) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 17² × 113. Written other ways, in hexadecimal, 0x1FE44.

Cube-Free Deficient Number Evil Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
17 bits
Reversed
826,031
Square (n²)
17,063,674,384
Cube (n³)
2,228,993,657,433,152
Divisor count
18
σ(n) — sum of divisors
244,986
φ(n) — Euler's totient
60,928
Sum of prime factors
151

Primality

Prime factorization: 2 2 × 17 2 × 113

Nearest primes: 130,621 (−7) · 130,631 (+3)

Divisors & multiples

All divisors (18)
1 · 2 · 4 · 17 · 34 · 68 · 113 · 226 · 289 · 452 · 578 · 1156 · 1921 · 3842 · 7684 · 32657 · 65314 (half) · 130628
Aliquot sum (sum of proper divisors): 114,358
Factor pairs (a × b = 130,628)
1 × 130628
2 × 65314
4 × 32657
17 × 7684
34 × 3842
68 × 1921
113 × 1156
226 × 578
289 × 452
First multiples
130,628 · 261,256 (double) · 391,884 · 522,512 · 653,140 · 783,768 · 914,396 · 1,045,024 · 1,175,652 · 1,306,280

Sums & aliquot sequence

As a sum of two squares: 82² + 352² = 128² + 338² = 238² + 272²
As consecutive integers: 16,325 + 16,326 + … + 16,332 7,676 + 7,677 + … + 7,692 1,100 + 1,101 + … + 1,212 893 + 894 + … + 1,028
Aliquot sequence: 130,628 114,358 57,182 28,594 18,440 23,140 29,780 32,800 49,226 25,558 15,770 14,470 11,594 9,142 6,554 3,706 2,234 — unresolved within range

Continued fraction of √n

√130,628 = [361; (2, 2, 1, 4, 1, 13, 1, 12, 1, 2, 2, 2, 13, 2, 22, 9, 2, 1, 10, 1, 1, 1, 1, 1, …)]

Representations

In words
one hundred thirty thousand six hundred twenty-eight
Ordinal
130628th
Binary
11111111001000100
Octal
377104
Hexadecimal
0x1FE44
Base64
Af5E
One's complement
4,294,836,667 (32-bit)
Scientific notation
1.30628 × 10⁵
As a duration
130,628 s = 1 day, 12 hours, 17 minutes, 8 seconds
In other bases
ternary (3) 20122012002
quaternary (4) 133321010
quinary (5) 13140003
senary (6) 2444432
septenary (7) 1052561
nonary (9) 218162
undecimal (11) 8a163
duodecimal (12) 63718
tridecimal (13) 475c4
tetradecimal (14) 35868
pentadecimal (15) 28a88

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλχκηʹ
Mayan (base 20)
𝋰·𝋦·𝋫·𝋨
Chinese
一十三萬零六百二十八
Chinese (financial)
壹拾參萬零陸佰貳拾捌
In other modern scripts
Eastern Arabic ١٣٠٦٢٨ Devanagari १३०६२८ Bengali ১৩০৬২৮ Tamil ௧௩௦௬௨௮ Thai ๑๓๐๖๒๘ Tibetan ༡༣༠༦༢༨ Khmer ១៣០៦២៨ Lao ໑໓໐໖໒໘ Burmese ၁၃၀၆၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 130628, here are decompositions:

  • 7 + 130621 = 130628
  • 97 + 130531 = 130628
  • 139 + 130489 = 130628
  • 151 + 130477 = 130628
  • 181 + 130447 = 130628
  • 229 + 130399 = 130628
  • 349 + 130279 = 130628
  • 367 + 130261 = 130628

Showing the first eight; more decompositions exist.

Hex color
#01FE44
RGB(1, 254, 68)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.254.68.

Address
0.1.254.68
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.254.68

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

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 130,628 and was likely granted around 1872.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.