Live analysis
13,021
13,021 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
- 7
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 14 bits
- Reversed
- 12,031
- Recamán's sequence
- a(48,233) = 13,021
- Square (n²)
- 169,546,441
- Cube (n³)
- 2,207,664,208,261
- Divisor count
- 4
- σ(n) — sum of divisors
- 13,500
- φ(n) — Euler's totient
- 12,544
- Sum of prime factors
- 478
Primality
Prime factorization: 29 × 449
Divisors & multiples
Aliquot sum (sum of proper divisors):
479
First multiples
13,021
·
26,042
(double)
·
39,063
·
52,084
·
65,105
·
78,126
·
91,147
·
104,168
·
117,189
·
130,210
Sums & aliquot sequence
As a sum of two squares:
5² + 114² = 75² + 86²
As consecutive integers:
6,510 + 6,511
435 + 436 + … + 463
196 + 197 + … + 253
Aliquot sequence:
13,021 → 479 → 1 → 0
— terminates at zero
Representations
- In words
- thirteen thousand twenty-one
- Ordinal
- 13021st
- Binary
- 11001011011101
- Octal
- 31335
- Hexadecimal
- 0x32DD
- Base64
- Mt0=
- One's complement
- 52,514 (16-bit)
In other bases
ternary (3)
122212021
quaternary (4)
3023131
quinary (5)
404041
senary (6)
140141
septenary (7)
52651
nonary (9)
18767
undecimal (11)
9868
duodecimal (12)
7651
tridecimal (13)
5c08
tetradecimal (14)
4a61
pentadecimal (15)
3cd1
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓆼𓎆𓎆𓏺
- Greek (Milesian)
- ͵ιγκαʹ
- Mayan (base 20)
- 𝋡·𝋬·𝋫·𝋡
- Chinese
- 一萬三千零二十一
- Chinese (financial)
- 壹萬參仟零貳拾壹
In other modern scripts
Eastern Arabic
١٣٠٢١
Devanagari
१३०२१
Bengali
১৩০২১
Tamil
௧௩௦௨௧
Thai
๑๓๐๒๑
Tibetan
༡༣༠༢༡
Khmer
១៣០២១
Lao
໑໓໐໒໑
Burmese
၁၃၀၂၁
Digit at this position in famous constants
- π — Pi (π)
- Digit 13,021 = 9
- e — Euler's number (e)
- Digit 13,021 = 6
- φ — Golden ratio (φ)
- Digit 13,021 = 6
- √2 — Pythagoras's (√2)
- Digit 13,021 = 2
- ln 2 — Natural log of 2
- Digit 13,021 = 2
- γ — Euler-Mascheroni (γ)
- Digit 13,021 = 4
Also seen as
Unicode codepoint
㋝
Circled Katakana Se
U+32DD
Other symbol (So)
UTF-8 encoding: E3 8B 9D (3 bytes).
Hex color
#0032DD
RGB(0, 50, 221)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.50.221.
- Address
- 0.0.50.221
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.50.221
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 13021 first appears in π at position 4,381 of the decimal expansion (the 4,381ordinal-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.