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107,840

107,840 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.).

107,840 (one hundred seven thousand eight hundred forty) is an even 6-digit number. It is a composite number with 28 divisors, and factors as 2⁶ × 5 × 337. Its proper divisors sum to 149,716, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1A540.

Abundant Number Evil Number Gapful Number Happy Number Harshad / Niven Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
17 bits
Reversed
48,701
Square (n²)
11,629,465,600
Cube (n³)
1,254,121,570,304,000
Divisor count
28
σ(n) — sum of divisors
257,556
φ(n) — Euler's totient
43,008
Sum of prime factors
354

Primality

Prime factorization: 2 6 × 5 × 337

Nearest primes: 107,839 (−1) · 107,843 (+3)

Divisors & multiples

All divisors (28)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 64 · 80 · 160 · 320 · 337 · 674 · 1348 · 1685 · 2696 · 3370 · 5392 · 6740 · 10784 · 13480 · 21568 · 26960 · 53920 (half) · 107840
Aliquot sum (sum of proper divisors): 149,716
Factor pairs (a × b = 107,840)
1 × 107840
2 × 53920
4 × 26960
5 × 21568
8 × 13480
10 × 10784
16 × 6740
20 × 5392
32 × 3370
40 × 2696
64 × 1685
80 × 1348
160 × 674
320 × 337
First multiples
107,840 · 215,680 (double) · 323,520 · 431,360 · 539,200 · 647,040 · 754,880 · 862,720 · 970,560 · 1,078,400

Sums & aliquot sequence

As a sum of two squares: 16² + 328² = 184² + 272²
As consecutive integers: 21,566 + 21,567 + 21,568 + 21,569 + 21,570 779 + 780 + … + 906 152 + 153 + … + 488
Aliquot sequence: 107,840 → 149,716 → 149,772 → 249,844 → 249,900 → 640,668 → 1,133,412 → 1,941,660 → 5,186,916 → 10,316,572 → 10,350,620 → 15,958,180 → 23,587,676 → 23,587,732 → 23,587,788 → 44,472,372 → 80,654,028 — unresolved within range

Continued fraction of √n

√107,840 = [328; (2, 1, 1, 3, 2, 2, 7, 1, 9, 2, 1, 1, 1, 1, 1, 15, 2, 1, 1, 163, 1, 1, 2, 15, …)]

Period length 40 — the block in parentheses repeats forever.

Representations

In words
one hundred seven thousand eight hundred forty
Ordinal
107840th
Binary
11010010101000000
Octal
322500
Hexadecimal
0x1A540
Base64
AaVA
One's complement
4,294,859,455 (32-bit)
Scientific notation
1.0784 × 10⁵
As a duration
107,840 s = 1 day, 5 hours, 57 minutes, 20 seconds
In other bases
ternary (3) 12110221002
quaternary (4) 122111000
quinary (5) 11422330
senary (6) 2151132
septenary (7) 626255
nonary (9) 173832
undecimal (11) 74027
duodecimal (12) 524a8
tridecimal (13) 3a115
tetradecimal (14) 2b42c
pentadecimal (15) 21e45

As an angle

107,840° = 299 × 360° + 200°
200° ≈ 3.491 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρζωμʹ
Mayan (base 20)
𝋭·𝋩·𝋬·𝋠
Chinese
十萬七千八百四十
Chinese (financial)
壹拾萬柒仟捌佰肆拾
In other modern scripts
Eastern Arabic ١٠٧٨٤٠ Devanagari १०७८४० Bengali ১০৭৮৪০ Tamil ௧௦௭௮௪௦ Thai ๑๐๗๘๔๐ Tibetan ༡༠༧༨༤༠ Khmer ១០៧៨៤០ Lao ໑໐໗໘໔໐ Burmese ၁၀၇၈၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 107840, here are decompositions:

  • 3 + 107837 = 107840
  • 13 + 107827 = 107840
  • 67 + 107773 = 107840
  • 79 + 107761 = 107840
  • 127 + 107713 = 107840
  • 193 + 107647 = 107840
  • 199 + 107641 = 107840
  • 241 + 107599 = 107840

Showing the first eight; more decompositions exist.

Hex color
#01A540
RGB(1, 165, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.165.64.

Address
0.1.165.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.165.64

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 107,840 and was likely granted around 1870.

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

Position in π

The digit sequence 107840 first appears in π at position 559,535 of the decimal expansion (the 559,535ordinal-suffix:th 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

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