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100,040

100,040 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 Gapful Number Harshad / Niven Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
6
Digit sum
5
Digit product
0
Digital root
5
Palindrome
No
Bit width
17 bits
Reversed
40,001
Recamán's sequence
a(255,760) = 100,040
Square (n²)
10,008,001,600
Cube (n³)
1,001,200,480,064,000
Divisor count
32
σ(n) — sum of divisors
234,360
φ(n) — Euler's totient
38,400
Sum of prime factors
113

Primality

Prime factorization: 2 3 × 5 × 41 × 61

Nearest primes: 100,019 (−21) · 100,043 (+3)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 41 · 61 · 82 · 122 · 164 · 205 · 244 · 305 · 328 · 410 · 488 · 610 · 820 · 1220 · 1640 · 2440 · 2501 · 5002 · 10004 · 12505 · 20008 · 25010 · 50020 (half) · 100040
Aliquot sum (sum of proper divisors): 134,320
Factor pairs (a × b = 100,040)
1 × 100040
2 × 50020
4 × 25010
5 × 20008
8 × 12505
10 × 10004
20 × 5002
40 × 2501
41 × 2440
61 × 1640
82 × 1220
122 × 820
164 × 610
205 × 488
244 × 410
305 × 328
First multiples
100,040 · 200,080 (double) · 300,120 · 400,160 · 500,200 · 600,240 · 700,280 · 800,320 · 900,360 · 1,000,400

Sums & aliquot sequence

As a sum of two squares: 38² + 314² = 94² + 302² = 106² + 298² = 158² + 274²
As consecutive integers: 20,006 + 20,007 + 20,008 + 20,009 + 20,010 6,245 + 6,246 + … + 6,260 2,420 + 2,421 + … + 2,460 1,610 + 1,611 + … + 1,670
Aliquot sequence: 100,040 134,320 196,016 183,796 137,854 68,930 58,294 29,150 31,114 16,694 9,874 4,940 6,820 9,308 8,332 6,256 7,136 — unresolved within range

Representations

In words
one hundred thousand forty
Ordinal
100040th
Binary
11000011011001000
Octal
303310
Hexadecimal
0x186C8
Base64
AYbI
One's complement
4,294,867,255 (32-bit)
In other bases
ternary (3) 12002020012
quaternary (4) 120123020
quinary (5) 11200130
senary (6) 2051052
septenary (7) 564443
nonary (9) 162205
undecimal (11) 69186
duodecimal (12) 49a88
tridecimal (13) 366c5
tetradecimal (14) 2865a
pentadecimal (15) 1e995

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρμʹ
Mayan (base 20)
𝋬·𝋪·𝋢·𝋠
Chinese
一十萬零四十
Chinese (financial)
壹拾萬零肆拾
In other modern scripts
Eastern Arabic ١٠٠٠٤٠ Devanagari १०००४० Bengali ১০০০৪০ Tamil ௧௦௦௦௪௦ Thai ๑๐๐๐๔๐ Tibetan ༡༠༠༠༤༠ Khmer ១០០០៤០ Lao ໑໐໐໐໔໐ Burmese ၁၀၀၀၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100040, here are decompositions:

  • 37 + 100003 = 100040
  • 79 + 99961 = 100040
  • 139 + 99901 = 100040
  • 163 + 99877 = 100040
  • 181 + 99859 = 100040
  • 211 + 99829 = 100040
  • 223 + 99817 = 100040
  • 307 + 99733 = 100040

Showing the first eight; more decompositions exist.

Unicode codepoint
𘛈
Tangut Ideograph-186C8
U+186C8
Other letter (Lo)

UTF-8 encoding: F0 98 9B 88 (4 bytes).

Hex color
#0186C8
RGB(1, 134, 200)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.134.200.

Address
0.1.134.200
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.134.200

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 100,040 and was likely granted around 1870.

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