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10,220

10,220 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 Gapful Number Harshad / Niven Odious Number Practical Number Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
5
Digit product
0
Digital root
5
Palindrome
No
Bit width
14 bits
Reversed
2,201
Recamán's sequence
a(5,699) = 10,220
Square (n²)
104,448,400
Cube (n³)
1,067,462,648,000
Divisor count
24
σ(n) — sum of divisors
24,864
φ(n) — Euler's totient
3,456
Sum of prime factors
89

Primality

Prime factorization: 2 2 × 5 × 7 × 73

Nearest primes: 10,211 (−9) · 10,223 (+3)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 7 · 10 · 14 · 20 · 28 · 35 · 70 · 73 · 140 · 146 · 292 · 365 · 511 · 730 · 1022 · 1460 · 2044 · 2555 · 5110 (half) · 10220
Aliquot sum (sum of proper divisors): 14,644
Factor pairs (a × b = 10,220)
1 × 10220
2 × 5110
4 × 2555
5 × 2044
7 × 1460
10 × 1022
14 × 730
20 × 511
28 × 365
35 × 292
70 × 146
73 × 140
First multiples
10,220 · 20,440 (double) · 30,660 · 40,880 · 51,100 · 61,320 · 71,540 · 81,760 · 91,980 · 102,200

Sums & aliquot sequence

As consecutive integers: 2,042 + 2,043 + 2,044 + 2,045 + 2,046 1,457 + 1,458 + … + 1,463 1,274 + 1,275 + … + 1,281 275 + 276 + … + 309
Aliquot sequence: 10,220 14,644 14,700 34,776 80,424 137,586 149,838 194,898 230,478 236,082 371,310 519,906 535,038 688,002 884,670 1,298,658 1,325,598 — unresolved within range

Representations

In words
ten thousand two hundred twenty
Ordinal
10220th
Binary
10011111101100
Octal
23754
Hexadecimal
0x27EC
Base64
J+w=
One's complement
55,315 (16-bit)
In other bases
ternary (3) 112000112
quaternary (4) 2133230
quinary (5) 311340
senary (6) 115152
septenary (7) 41540
nonary (9) 15015
undecimal (11) 7751
duodecimal (12) 5ab8
tridecimal (13) 4862
tetradecimal (14) 3a20
pentadecimal (15) 3065

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic
𓂍𓍢𓍢𓎆𓎆
Greek (Milesian)
͵ισκʹ
Mayan (base 20)
𝋡·𝋥·𝋫·𝋠
Chinese
一萬零二百二十
Chinese (financial)
壹萬零貳佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٢٠ Devanagari १०२२० Bengali ১০২২০ Tamil ௧௦௨௨௦ Thai ๑๐๒๒๐ Tibetan ༡༠༢༢༠ Khmer ១០២២០ Lao ໑໐໒໒໐ Burmese ၁၀၂၂၀

Digit at this position in famous constants

π — Pi (π)
Digit 10,220 = 8
e — Euler's number (e)
Digit 10,220 = 3
φ — Golden ratio (φ)
Digit 10,220 = 8
√2 — Pythagoras's (√2)
Digit 10,220 = 0
ln 2 — Natural log of 2
Digit 10,220 = 6
γ — Euler-Mascheroni (γ)
Digit 10,220 = 7

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 10220, here are decompositions:

  • 43 + 10177 = 10220
  • 61 + 10159 = 10220
  • 79 + 10141 = 10220
  • 109 + 10111 = 10220
  • 127 + 10093 = 10220
  • 151 + 10069 = 10220
  • 181 + 10039 = 10220
  • 211 + 10009 = 10220

Showing the first eight; more decompositions exist.

Unicode codepoint
Mathematical Left White Tortoise Shell Bracket
U+27EC
Open punctuation (Ps)

UTF-8 encoding: E2 9F AC (3 bytes).

Hex color
#0027EC
RGB(0, 39, 236)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.39.236.

Address
0.0.39.236
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.39.236

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 10220 first appears in π at position 281,641 of the decimal expansion (the 281,641ordinal-suffix:st 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.