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100,020

100,020 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 Arithmetic Number Evil Number Gapful Number Harshad / Niven Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
6
Digit sum
3
Digit product
0
Digital root
3
Palindrome
No
Bit width
17 bits
Reversed
20,001
Recamán's sequence
a(255,800) = 100,020
Square (n²)
10,004,000,400
Cube (n³)
1,000,600,120,008,000
Divisor count
24
σ(n) — sum of divisors
280,224
φ(n) — Euler's totient
26,656
Sum of prime factors
1,679

Primality

Prime factorization: 2 2 × 3 × 5 × 1667

Nearest primes: 100,019 (−1) · 100,043 (+23)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 5 · 6 · 10 · 12 · 15 · 20 · 30 · 60 · 1667 · 3334 · 5001 · 6668 · 8335 · 10002 · 16670 · 20004 · 25005 · 33340 · 50010 (half) · 100020
Aliquot sum (sum of proper divisors): 180,204
Factor pairs (a × b = 100,020)
1 × 100020
2 × 50010
3 × 33340
4 × 25005
5 × 20004
6 × 16670
10 × 10002
12 × 8335
15 × 6668
20 × 5001
30 × 3334
60 × 1667
First multiples
100,020 · 200,040 (double) · 300,060 · 400,080 · 500,100 · 600,120 · 700,140 · 800,160 · 900,180 · 1,000,200

Sums & aliquot sequence

As consecutive integers: 33,339 + 33,340 + 33,341 20,002 + 20,003 + 20,004 + 20,005 + 20,006 12,499 + 12,500 + … + 12,506 6,661 + 6,662 + … + 6,675
Aliquot sequence: 100,020 180,204 240,300 540,900 1,157,342 602,674 304,634 204,262 122,330 115,054 57,530 55,654 27,830 29,626 14,816 14,416 15,716 — unresolved within range

Representations

In words
one hundred thousand twenty
Ordinal
100020th
Binary
11000011010110100
Octal
303264
Hexadecimal
0x186B4
Base64
AYa0
One's complement
4,294,867,275 (32-bit)
In other bases
ternary (3) 12002012110
quaternary (4) 120122310
quinary (5) 11200040
senary (6) 2051020
septenary (7) 564414
nonary (9) 162173
undecimal (11) 69168
duodecimal (12) 49a70
tridecimal (13) 366ab
tetradecimal (14) 28644
pentadecimal (15) 1e980

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓎆𓎆
Greek (Milesian)
͵ρκʹ
Mayan (base 20)
𝋬·𝋪·𝋡·𝋠
Chinese
一十萬零二十
Chinese (financial)
壹拾萬零貳拾
In other modern scripts
Eastern Arabic ١٠٠٠٢٠ Devanagari १०००२० Bengali ১০০০২০ Tamil ௧௦௦௦௨௦ Thai ๑๐๐๐๒๐ Tibetan ༡༠༠༠༢༠ Khmer ១០០០២០ Lao ໑໐໐໐໒໐ Burmese ၁၀၀၀၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100020, here are decompositions:

  • 17 + 100003 = 100020
  • 29 + 99991 = 100020
  • 31 + 99989 = 100020
  • 59 + 99961 = 100020
  • 97 + 99923 = 100020
  • 113 + 99907 = 100020
  • 139 + 99881 = 100020
  • 149 + 99871 = 100020

Showing the first eight; more decompositions exist.

Unicode codepoint
𘚴
Tangut Ideograph-186B4
U+186B4
Other letter (Lo)

UTF-8 encoding: F0 98 9A B4 (4 bytes).

Hex color
#0186B4
RGB(1, 134, 180)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.134.180.

Address
0.1.134.180
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.134.180

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 100,020 and was likely granted around 1870.

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