Live analysis
21,073
21,073 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.).
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 37,012
- Recamán's sequence
- a(41,693) = 21,073
- Square (n²)
- 444,071,329
- Cube (n³)
- 9,357,915,116,017
- Divisor count
- 4
- σ(n) — sum of divisors
- 22,708
- φ(n) — Euler's totient
- 19,440
- Sum of prime factors
- 1,634
Primality
Prime factorization: 13 × 1621
Divisors & multiples
Aliquot sum (sum of proper divisors):
1,635
First multiples
21,073
·
42,146
(double)
·
63,219
·
84,292
·
105,365
·
126,438
·
147,511
·
168,584
·
189,657
·
210,730
Sums & aliquot sequence
As a sum of two squares:
48² + 137² = 97² + 108²
As consecutive integers:
10,536 + 10,537
1,615 + 1,616 + … + 1,627
798 + 799 + … + 823
Aliquot sequence:
21,073 → 1,635 → 1,005 → 627 → 333 → 161 → 31 → 1 → 0
— terminates at zero
Representations
- In words
- twenty-one thousand seventy-three
- Ordinal
- 21073rd
- Binary
- 101001001010001
- Octal
- 51121
- Hexadecimal
- 0x5251
- Base64
- UlE=
- One's complement
- 44,462 (16-bit)
In other bases
ternary (3)
1001220111
quaternary (4)
11021101
quinary (5)
1133243
senary (6)
241321
septenary (7)
115303
nonary (9)
31814
undecimal (11)
14918
duodecimal (12)
10241
tridecimal (13)
9790
tetradecimal (14)
7973
pentadecimal (15)
639d
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵καογʹ
- Mayan (base 20)
- 𝋢·𝋬·𝋭·𝋭
- Chinese
- 二萬一千零七十三
- Chinese (financial)
- 貳萬壹仟零柒拾參
In other modern scripts
Eastern Arabic
٢١٠٧٣
Devanagari
२१०७३
Bengali
২১০৭৩
Tamil
௨௧௦௭௩
Thai
๒๑๐๗๓
Tibetan
༢༡༠༧༣
Khmer
២១០៧៣
Lao
໒໑໐໗໓
Burmese
၂၁၀၇၃
Digit at this position in famous constants
- π — Pi (π)
- Digit 21,073 = 0
- e — Euler's number (e)
- Digit 21,073 = 9
- φ — Golden ratio (φ)
- Digit 21,073 = 4
- √2 — Pythagoras's (√2)
- Digit 21,073 = 8
- ln 2 — Natural log of 2
- Digit 21,073 = 3
- γ — Euler-Mascheroni (γ)
- Digit 21,073 = 1
Also seen as
Unicode codepoint
剑
CJK Unified Ideograph-5251
U+5251
Other letter (Lo)
UTF-8 encoding: E5 89 91 (3 bytes).
Hex color
#005251
RGB(0, 82, 81)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.82.81.
- Address
- 0.0.82.81
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.82.81
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 21073 first appears in π at position 4,474 of the decimal expansion (the 4,474ordinal-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.