Number
12,421
12,421 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 16
- Digital root
- 1
- Palindrome
- Yes
- Bit width
- 14 bits
- Recamán's sequence
- a(21,942) = 12,421
- Square (n²)
- 154,281,241
- Cube (n³)
- 1,916,327,294,461
- Divisor count
- 2
- σ(n) — sum of divisors
- 12,422
- φ(n) — Euler's totient
- 12,420
Primality
12,421 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
Sums & aliquot sequence
As a sum of two squares:
10² + 111²
As consecutive integers:
6,210 + 6,211
Representations
- In words
- twelve thousand four hundred twenty-one
- Ordinal
- 12421st
- Binary
- 11000010000101
- Octal
- 30205
- Hexadecimal
- 0x3085
- Base64
- MIU=
- One's complement
- 53,114 (16-bit)
In other bases
ternary (3)
122001001
quaternary (4)
3002011
quinary (5)
344141
senary (6)
133301
septenary (7)
51133
nonary (9)
18031
undecimal (11)
9372
duodecimal (12)
7231
tridecimal (13)
5866
tetradecimal (14)
4753
pentadecimal (15)
3a31
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ιβυκαʹ
- Mayan (base 20)
- 𝋡·𝋫·𝋡·𝋡
- Chinese
- 一萬二千四百二十一
- Chinese (financial)
- 壹萬貳仟肆佰貳拾壹
In other modern scripts
Eastern Arabic
١٢٤٢١
Devanagari
१२४२१
Bengali
১২৪২১
Tamil
௧௨௪௨௧
Thai
๑๒๔๒๑
Tibetan
༡༢༤༢༡
Khmer
១២៤២១
Lao
໑໒໔໒໑
Burmese
၁၂၄၂၁
Digit at this position in famous constants
- π — Pi (π)
- Digit 12,421 = 3
- e — Euler's number (e)
- Digit 12,421 = 7
- φ — Golden ratio (φ)
- Digit 12,421 = 0
- √2 — Pythagoras's (√2)
- Digit 12,421 = 6
- ln 2 — Natural log of 2
- Digit 12,421 = 3
- γ — Euler-Mascheroni (γ)
- Digit 12,421 = 5
Also seen as
Unicode codepoint
ゅ
Hiragana Letter Small Yu
U+3085
Other letter (Lo)
UTF-8 encoding: E3 82 85 (3 bytes).
Hex color
#003085
RGB(0, 48, 133)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.48.133.
- Address
- 0.0.48.133
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.48.133
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 12421 first appears in π at position 58,726 of the decimal expansion (the 58,726ordinal-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.