Number
21,059
21,059 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 95,012
- Recamán's sequence
- a(41,721) = 21,059
- Square (n²)
- 443,481,481
- Cube (n³)
- 9,339,276,508,379
- Divisor count
- 2
- σ(n) — sum of divisors
- 21,060
- φ(n) — Euler's totient
- 21,058
Primality
21,059 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
21,059
·
42,118
(double)
·
63,177
·
84,236
·
105,295
·
126,354
·
147,413
·
168,472
·
189,531
·
210,590
Sums & aliquot sequence
As consecutive integers:
10,529 + 10,530
Representations
- In words
- twenty-one thousand fifty-nine
- Ordinal
- 21059th
- Binary
- 101001001000011
- Octal
- 51103
- Hexadecimal
- 0x5243
- Base64
- UkM=
- One's complement
- 44,476 (16-bit)
In other bases
ternary (3)
1001212222
quaternary (4)
11021003
quinary (5)
1133214
senary (6)
241255
septenary (7)
115253
nonary (9)
31788
undecimal (11)
14905
duodecimal (12)
1022b
tridecimal (13)
977c
tetradecimal (14)
7963
pentadecimal (15)
638e
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓆼𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵κανθʹ
- Mayan (base 20)
- 𝋢·𝋬·𝋬·𝋳
- Chinese
- 二萬一千零五十九
- Chinese (financial)
- 貳萬壹仟零伍拾玖
In other modern scripts
Eastern Arabic
٢١٠٥٩
Devanagari
२१०५९
Bengali
২১০৫৯
Tamil
௨௧௦௫௯
Thai
๒๑๐๕๙
Tibetan
༢༡༠༥༩
Khmer
២១០៥៩
Lao
໒໑໐໕໙
Burmese
၂၁၀၅၉
Digit at this position in famous constants
- π — Pi (π)
- Digit 21,059 = 5
- e — Euler's number (e)
- Digit 21,059 = 4
- φ — Golden ratio (φ)
- Digit 21,059 = 3
- √2 — Pythagoras's (√2)
- Digit 21,059 = 8
- ln 2 — Natural log of 2
- Digit 21,059 = 3
- γ — Euler-Mascheroni (γ)
- Digit 21,059 = 4
Also seen as
Prime neighborhood
Unicode codepoint
剃
CJK Unified Ideograph-5243
U+5243
Other letter (Lo)
UTF-8 encoding: E5 89 83 (3 bytes).
Hex color
#005243
RGB(0, 82, 67)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.82.67.
- Address
- 0.0.82.67
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.82.67
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 21059 first appears in π at position 160,198 of the decimal expansion (the 160,198ordinal-suffix:th 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.