Number
42,131
42,131 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 24
- Digital root
- 2
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 13,124
- Recamán's sequence
- a(151,361) = 42,131
- Square (n²)
- 1,775,021,161
- Cube (n³)
- 74,783,416,534,091
- Divisor count
- 2
- σ(n) — sum of divisors
- 42,132
- φ(n) — Euler's totient
- 42,130
Primality
42,131 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
42,131
·
84,262
(double)
·
126,393
·
168,524
·
210,655
·
252,786
·
294,917
·
337,048
·
379,179
·
421,310
Sums & aliquot sequence
As consecutive integers:
21,065 + 21,066
Representations
- In words
- forty-two thousand one hundred thirty-one
- Ordinal
- 42131st
- Binary
- 1010010010010011
- Octal
- 122223
- Hexadecimal
- 0xA493
- Base64
- pJM=
- One's complement
- 23,404 (16-bit)
In other bases
ternary (3)
2010210102
quaternary (4)
22102103
quinary (5)
2322011
senary (6)
523015
septenary (7)
233555
nonary (9)
63712
undecimal (11)
29721
duodecimal (12)
2046b
tridecimal (13)
1623b
tetradecimal (14)
114d5
pentadecimal (15)
c73b
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵μβρλαʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋦·𝋫
- Chinese
- 四萬二千一百三十一
- Chinese (financial)
- 肆萬貳仟壹佰參拾壹
In other modern scripts
Eastern Arabic
٤٢١٣١
Devanagari
४२१३१
Bengali
৪২১৩১
Tamil
௪௨௧௩௧
Thai
๔๒๑๓๑
Tibetan
༤༢༡༣༡
Khmer
៤២១៣១
Lao
໔໒໑໓໑
Burmese
၄၂၁၃၁
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,131 = 6
- e — Euler's number (e)
- Digit 42,131 = 0
- φ — Golden ratio (φ)
- Digit 42,131 = 8
- √2 — Pythagoras's (√2)
- Digit 42,131 = 3
- ln 2 — Natural log of 2
- Digit 42,131 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,131 = 6
Also seen as
Unicode codepoint
꒓
Yi Radical Nyip
U+A493
Other symbol (So)
UTF-8 encoding: EA 92 93 (3 bytes).
Hex color
#00A493
RGB(0, 164, 147)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.147.
- Address
- 0.0.164.147
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.147
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 42131 first appears in π at position 331,209 of the decimal expansion (the 331,209ordinal-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.