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100,440

100,440 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.).
Abundant Number Harshad / Niven

Properties

Parity
Even
Digit count
6
Digit sum
9
Digital root
9
Palindrome
No
Reversed
44,001
Divisor count
80
σ(n) — sum of divisors
348,480

Primality

Prime factorization: 2 3 × 3 4 × 5 × 31

Divisors & multiples

All divisors (80)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 18 · 20 · 24 · 27 · 30 · 31 · 36 · 40 · 45 · 54 · 60 · 62 · 72 · 81 · 90 · 93 · 108 · 120 · 124 · 135 · 155 · 162 · 180 · 186 · 216 · 248 · 270 · 279 · 310 · 324 · 360 · 372 · 405 · 465 · 540 · 558 · 620 · 648 · 744 · 810 · 837 · 930 · 1080 · 1116 · 1240 · 1395 · 1620 · 1674 · 1860 · 2232 · 2511 · 2790 · 3240 · 3348 · 3720 · 4185 · 5022 · 5580 · 6696 · 8370 · 10044 · 11160 · 12555 · 16740 · 20088 · 25110 · 33480 · 50220 · 100440
Aliquot sum (sum of proper divisors): 248,040
Factor pairs (a × b = 100,440)
1 × 100440
2 × 50220
3 × 33480
4 × 25110
5 × 20088
6 × 16740
8 × 12555
9 × 11160
10 × 10044
12 × 8370
15 × 6696
18 × 5580
20 × 5022
24 × 4185
27 × 3720
30 × 3348
31 × 3240
36 × 2790
40 × 2511
45 × 2232
54 × 1860
60 × 1674
62 × 1620
72 × 1395
81 × 1240
90 × 1116
93 × 1080
108 × 930
120 × 837
124 × 810
135 × 744
155 × 648
162 × 620
180 × 558
186 × 540
216 × 465
248 × 405
270 × 372
279 × 360
310 × 324
First multiples
100,440 · 200,880 · 301,320 · 401,760 · 502,200 · 602,640 · 703,080 · 803,520 · 903,960 · 1,004,400

Representations

In words
one hundred thousand four hundred forty
Ordinal
100440th
Binary
11000100001011000
Octal
304130
Hexadecimal
0x18858
Base64
AYhY

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100440, here are decompositions:

  • 23 + 100417 = 100440
  • 29 + 100411 = 100440
  • 37 + 100403 = 100440
  • 47 + 100393 = 100440
  • 61 + 100379 = 100440
  • 79 + 100361 = 100440
  • 83 + 100357 = 100440
  • 97 + 100343 = 100440

Showing the first eight; more decompositions exist.

Unicode codepoint
𘡘
Tangut Component-089
U+18858
Other letter (Lo)

UTF-8 encoding: F0 98 A1 98 (4 bytes).

Lookup U+18858 on Compart ↗ Lookup on FileFormat.Info ↗
Hex color
#018858
RGB(1, 136, 88)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.136.88.

Address
0.1.136.88
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.136.88

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 100,440 and was likely granted around 1870.

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

Look up US100,440 on Google Patents ↗ Look up on USPTO ↗