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109,680

109,680 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.).

109,680 (one hundred nine thousand six hundred eighty) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 3 × 5 × 457. Its proper divisors sum to 231,072, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1AC70.

Abundant Number Evil Number Flippable Gapful Number Harshad / Niven Practical Number Recamán's Sequence Refactorable Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
24
Digit product
0
Digital root
6
Palindrome
No
Bit width
17 bits
Reversed
86,901
Flips to (rotate 180°)
89,601
Recamán's sequence
a(249,936) = 109,680
Square (n²)
12,029,702,400
Cube (n³)
1,319,417,759,232,000
Divisor count
40
σ(n) — sum of divisors
340,752
φ(n) — Euler's totient
29,184
Sum of prime factors
473

Primality

Prime factorization: 2 4 × 3 × 5 × 457

Nearest primes: 109,673 (−7) · 109,717 (+37)

Divisors & multiples

All divisors (40)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 16 · 20 · 24 · 30 · 40 · 48 · 60 · 80 · 120 · 240 · 457 · 914 · 1371 · 1828 · 2285 · 2742 · 3656 · 4570 · 5484 · 6855 · 7312 · 9140 · 10968 · 13710 · 18280 · 21936 · 27420 · 36560 · 54840 (half) · 109680
Aliquot sum (sum of proper divisors): 231,072
Factor pairs (a × b = 109,680)
1 × 109680
2 × 54840
3 × 36560
4 × 27420
5 × 21936
6 × 18280
8 × 13710
10 × 10968
12 × 9140
15 × 7312
16 × 6855
20 × 5484
24 × 4570
30 × 3656
40 × 2742
48 × 2285
60 × 1828
80 × 1371
120 × 914
240 × 457
First multiples
109,680 · 219,360 (double) · 329,040 · 438,720 · 548,400 · 658,080 · 767,760 · 877,440 · 987,120 · 1,096,800

Sums & aliquot sequence

As consecutive integers: 36,559 + 36,560 + 36,561 21,934 + 21,935 + 21,936 + 21,937 + 21,938 7,305 + 7,306 + … + 7,319 3,412 + 3,413 + … + 3,443
Aliquot sequence: 109,680 231,072 403,968 676,320 1,455,600 3,211,016 2,912,584 2,548,526 1,310,314 655,160 954,040 1,456,520 2,074,000 3,322,976 3,219,196 2,459,652 3,721,404 — unresolved within range

Continued fraction of √n

√109,680 = [331; (5, 1, 1, 3, 2, 1, 2, 13, 6, 1, 4, 1, 2, 2, 2, 1, 1, 7, 3, 2, 1, 40, 1, 2, …)]

Period length 44 — the block in parentheses repeats forever.

Representations

In words
one hundred nine thousand six hundred eighty
Ordinal
109680th
Binary
11010110001110000
Octal
326160
Hexadecimal
0x1AC70
Base64
Aaxw
One's complement
4,294,857,615 (32-bit)
Scientific notation
1.0968 × 10⁵
As a duration
109,680 s = 1 day, 6 hours, 28 minutes
In other bases
ternary (3) 12120110020
quaternary (4) 122301300
quinary (5) 12002210
senary (6) 2203440
septenary (7) 634524
nonary (9) 176406
undecimal (11) 7544a
duodecimal (12) 53580
tridecimal (13) 3abcc
tetradecimal (14) 2bd84
pentadecimal (15) 22770

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρθχπʹ
Mayan (base 20)
𝋭·𝋮·𝋤·𝋠
Chinese
一十萬九千六百八十
Chinese (financial)
壹拾萬玖仟陸佰捌拾
In other modern scripts
Eastern Arabic ١٠٩٦٨٠ Devanagari १०९६८० Bengali ১০৯৬৮০ Tamil ௧௦௯௬௮௦ Thai ๑๐๙๖๘๐ Tibetan ༡༠༩༦༨༠ Khmer ១០៩៦៨០ Lao ໑໐໙໖໘໐ Burmese ၁၀၉၆၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 109680, here are decompositions:

  • 7 + 109673 = 109680
  • 17 + 109663 = 109680
  • 19 + 109661 = 109680
  • 41 + 109639 = 109680
  • 59 + 109621 = 109680
  • 61 + 109619 = 109680
  • 71 + 109609 = 109680
  • 83 + 109597 = 109680

Showing the first eight; more decompositions exist.

Hex color
#01AC70
RGB(1, 172, 112)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.172.112.

Address
0.1.172.112
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.172.112

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 109,680 and was likely granted around 1871.

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°.