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109,788

109,788 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.).

109,788 (one hundred nine thousand seven hundred eighty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 7 × 1,307. Its proper divisors sum to 183,204, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1ACDC.

Abundant Number Arithmetic Number Cube-Free Evil Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
33
Digit product
0
Digital root
6
Palindrome
No
Bit width
17 bits
Reversed
887,901
Recamán's sequence
a(249,720) = 109,788
Square (n²)
12,053,404,944
Cube (n³)
1,323,319,221,991,872
Divisor count
24
σ(n) — sum of divisors
292,992
φ(n) — Euler's totient
31,344
Sum of prime factors
1,321

Primality

Prime factorization: 2 2 × 3 × 7 × 1307

Nearest primes: 109,751 (−37) · 109,789 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 7 · 12 · 14 · 21 · 28 · 42 · 84 · 1307 · 2614 · 3921 · 5228 · 7842 · 9149 · 15684 · 18298 · 27447 · 36596 · 54894 (half) · 109788
Aliquot sum (sum of proper divisors): 183,204
Factor pairs (a × b = 109,788)
1 × 109788
2 × 54894
3 × 36596
4 × 27447
6 × 18298
7 × 15684
12 × 9149
14 × 7842
21 × 5228
28 × 3921
42 × 2614
84 × 1307
First multiples
109,788 · 219,576 (double) · 329,364 · 439,152 · 548,940 · 658,728 · 768,516 · 878,304 · 988,092 · 1,097,880

Sums & aliquot sequence

As consecutive integers: 36,595 + 36,596 + 36,597 15,681 + 15,682 + … + 15,687 13,720 + 13,721 + … + 13,727 5,218 + 5,219 + … + 5,238
Aliquot sequence: 109,788 183,204 346,780 485,828 485,884 545,132 545,188 545,244 908,964 1,717,660 2,405,060 3,521,980 5,703,236 6,740,860 9,649,220 13,709,500 20,518,148 — unresolved within range

Continued fraction of √n

√109,788 = [331; (2, 1, 11, 5, 1, 164, 1, 5, 11, 1, 2, 662)]

Period length 12 — the block in parentheses repeats forever.

Representations

In words
one hundred nine thousand seven hundred eighty-eight
Ordinal
109788th
Binary
11010110011011100
Octal
326334
Hexadecimal
0x1ACDC
Base64
Aazc
One's complement
4,294,857,507 (32-bit)
Scientific notation
1.09788 × 10⁵
As a duration
109,788 s = 1 day, 6 hours, 29 minutes, 48 seconds
In other bases
ternary (3) 12120121020
quaternary (4) 122303130
quinary (5) 12003123
senary (6) 2204140
septenary (7) 635040
nonary (9) 176536
undecimal (11) 75538
duodecimal (12) 53650
tridecimal (13) 3ac83
tetradecimal (14) 2c020
pentadecimal (15) 227e3

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρθψπηʹ
Mayan (base 20)
𝋭·𝋮·𝋩·𝋨
Chinese
一十萬九千七百八十八
Chinese (financial)
壹拾萬玖仟柒佰捌拾捌
In other modern scripts
Eastern Arabic ١٠٩٧٨٨ Devanagari १०९७८८ Bengali ১০৯৭৮৮ Tamil ௧௦௯௭௮௮ Thai ๑๐๙๗๘๘ Tibetan ༡༠༩༧༨༨ Khmer ១០៩៧៨៨ Lao ໑໐໙໗໘໘ Burmese ၁၀၉၇၈၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 109788, here are decompositions:

  • 37 + 109751 = 109788
  • 47 + 109741 = 109788
  • 67 + 109721 = 109788
  • 71 + 109717 = 109788
  • 127 + 109661 = 109788
  • 149 + 109639 = 109788
  • 167 + 109621 = 109788
  • 179 + 109609 = 109788

Showing the first eight; more decompositions exist.

Hex color
#01ACDC
RGB(1, 172, 220)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.172.220.

Address
0.1.172.220
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.172.220

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 109,788 and was likely granted around 1871.

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

Position in π

The digit sequence 109788 first appears in π at position 422,901 of the decimal expansion (the 422,901ordinal-suffix:st digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.