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21,093

21,093 is a composite number, odd.

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.).
Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
15 bits
Reversed
39,012
Recamán's sequence
a(41,653) = 21,093
Square (n²)
444,914,649
Cube (n³)
9,384,584,691,357
Divisor count
8
σ(n) — sum of divisors
28,800
φ(n) — Euler's totient
13,728
Sum of prime factors
171

Primality

Prime factorization: 3 × 79 × 89

Nearest primes: 21,089 (−4) · 21,101 (+8)

Divisors & multiples

All divisors (8)
1 · 3 · 79 · 89 · 237 · 267 · 7031 · 21093
Aliquot sum (sum of proper divisors): 7,707
Factor pairs (a × b = 21,093)
1 × 21093
3 × 7031
79 × 267
89 × 237
First multiples
21,093 · 42,186 (double) · 63,279 · 84,372 · 105,465 · 126,558 · 147,651 · 168,744 · 189,837 · 210,930

Sums & aliquot sequence

As consecutive integers: 10,546 + 10,547 7,030 + 7,031 + 7,032 3,513 + 3,514 + 3,515 + 3,516 + 3,517 + 3,518 228 + 229 + … + 306
Aliquot sequence: 21,093 7,707 4,069 327 113 1 0 — terminates at zero

Representations

In words
twenty-one thousand ninety-three
Ordinal
21093rd
Binary
101001001100101
Octal
51145
Hexadecimal
0x5265
Base64
UmU=
One's complement
44,442 (16-bit)
In other bases
ternary (3) 1001221020
quaternary (4) 11021211
quinary (5) 1133333
senary (6) 241353
septenary (7) 115332
nonary (9) 31836
undecimal (11) 14936
duodecimal (12) 10259
tridecimal (13) 97a7
tetradecimal (14) 7989
pentadecimal (15) 63b3

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵καϟγʹ
Mayan (base 20)
𝋢·𝋬·𝋮·𝋭
Chinese
二萬一千零九十三
Chinese (financial)
貳萬壹仟零玖拾參
In other modern scripts
Eastern Arabic ٢١٠٩٣ Devanagari २१०९३ Bengali ২১০৯৩ Tamil ௨௧௦௯௩ Thai ๒๑๐๙๓ Tibetan ༢༡༠༩༣ Khmer ២១០៩៣ Lao ໒໑໐໙໓ Burmese ၂၁၀၉၃

Digit at this position in famous constants

π — Pi (π)
Digit 21,093 = 7
e — Euler's number (e)
Digit 21,093 = 5
φ — Golden ratio (φ)
Digit 21,093 = 7
√2 — Pythagoras's (√2)
Digit 21,093 = 5
ln 2 — Natural log of 2
Digit 21,093 = 1
γ — Euler-Mascheroni (γ)
Digit 21,093 = 1

Also seen as

Unicode codepoint
CJK Unified Ideograph-5265
U+5265
Other letter (Lo)

UTF-8 encoding: E5 89 A5 (3 bytes).

Hex color
#005265
RGB(0, 82, 101)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.82.101.

Address
0.0.82.101
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.82.101

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

Position in π

The digit sequence 21093 first appears in π at position 64,103 of the decimal expansion (the 64,103ordinal-suffix:rd 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.