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108,972

108,972 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.).

108,972 (one hundred eight thousand nine hundred seventy-two) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3³ × 1,009. Its proper divisors sum to 173,828, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1A9AC.

Abundant Number Gapful Number Harshad / Niven Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
27
Digit product
0
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
279,801
Square (n²)
11,874,896,784
Cube (n³)
1,294,031,252,346,048
Divisor count
24
σ(n) — sum of divisors
282,800
φ(n) — Euler's totient
36,288
Sum of prime factors
1,022

Primality

Prime factorization: 2 2 × 3 3 × 1009

Nearest primes: 108,971 (−1) · 108,991 (+19)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 9 · 12 · 18 · 27 · 36 · 54 · 108 · 1009 · 2018 · 3027 · 4036 · 6054 · 9081 · 12108 · 18162 · 27243 · 36324 · 54486 (half) · 108972
Aliquot sum (sum of proper divisors): 173,828
Factor pairs (a × b = 108,972)
1 × 108972
2 × 54486
3 × 36324
4 × 27243
6 × 18162
9 × 12108
12 × 9081
18 × 6054
27 × 4036
36 × 3027
54 × 2018
108 × 1009
First multiples
108,972 · 217,944 (double) · 326,916 · 435,888 · 544,860 · 653,832 · 762,804 · 871,776 · 980,748 · 1,089,720

Sums & aliquot sequence

As consecutive integers: 36,323 + 36,324 + 36,325 13,618 + 13,619 + … + 13,625 12,104 + 12,105 + … + 12,112 4,529 + 4,530 + … + 4,552
Aliquot sequence: 108,972 → 173,828 → 130,378 → 82,742 → 52,690 → 50,990 → 40,810 → 52,502 → 26,254 → 13,130 → 12,574 → 6,290 → 6,022 → 3,014 → 1,954 → 980 → 1,414 — unresolved within range

Continued fraction of √n

√108,972 = [330; (9, 5, 1, 17, 1, 1, 82, 73, 2, 1, 8, 1, 1, 164, 1, 1, 8, 1, 2, 73, 82, 1, 1, 17, …)]

Period length 28 — the block in parentheses repeats forever.

Representations

In words
one hundred eight thousand nine hundred seventy-two
Ordinal
108972nd
Binary
11010100110101100
Octal
324654
Hexadecimal
0x1A9AC
Base64
Aams
One's complement
4,294,858,323 (32-bit)
Scientific notation
1.08972 × 10⁵
As a duration
108,972 s = 1 day, 6 hours, 16 minutes, 12 seconds
In other bases
ternary (3) 12112111000
quaternary (4) 122212230
quinary (5) 11441342
senary (6) 2200300
septenary (7) 632463
nonary (9) 175430
undecimal (11) 74966
duodecimal (12) 53090
tridecimal (13) 3a7a6
tetradecimal (14) 2b9da
pentadecimal (15) 2244c

As an angle

108,972° = 302 × 360° + 252°
252° ≈ 4.398 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ρηϡοβʹ
Mayan (base 20)
𝋭·𝋬·𝋨·𝋬
Chinese
十萬八千九百七十二
Chinese (financial)
壹拾萬捌仟玖佰柒拾貳
In other modern scripts
Eastern Arabic ١٠٨٩٧٢ Devanagari १०८९७२ Bengali ১০৮৯৭২ Tamil ௧௦௮௯௭௨ Thai ๑๐๘๙๗๒ Tibetan ༡༠༨༩༧༢ Khmer ១០៨៩៧២ Lao ໑໐໘໙໗໒ Burmese ၁၀၈၉၇၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 108972, here are decompositions:

  • 5 + 108967 = 108972
  • 11 + 108961 = 108972
  • 13 + 108959 = 108972
  • 23 + 108949 = 108972
  • 29 + 108943 = 108972
  • 43 + 108929 = 108972
  • 79 + 108893 = 108972
  • 89 + 108883 = 108972

Showing the first eight; more decompositions exist.

Hex color
#01A9AC
RGB(1, 169, 172)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.169.172.

Address
0.1.169.172
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.169.172

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 108,972 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°.