Number
42,139
42,139 is a prime, odd.
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 19
- Digit product
- 216
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 93,124
- Recamán's sequence
- a(151,345) = 42,139
- Square (n²)
- 1,775,695,321
- Cube (n³)
- 74,826,025,131,619
- Divisor count
- 2
- σ(n) — sum of divisors
- 42,140
- φ(n) — Euler's totient
- 42,138
Primality
42,139 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Aliquot sum (sum of proper divisors):
1
First multiples
42,139
·
84,278
(double)
·
126,417
·
168,556
·
210,695
·
252,834
·
294,973
·
337,112
·
379,251
·
421,390
Sums & aliquot sequence
As consecutive integers:
21,069 + 21,070
Representations
- In words
- forty-two thousand one hundred thirty-nine
- Ordinal
- 42139th
- Binary
- 1010010010011011
- Octal
- 122233
- Hexadecimal
- 0xA49B
- Base64
- pJs=
- One's complement
- 23,396 (16-bit)
In other bases
ternary (3)
2010210201
quaternary (4)
22102123
quinary (5)
2322024
senary (6)
523031
septenary (7)
233566
nonary (9)
63721
undecimal (11)
29729
duodecimal (12)
20477
tridecimal (13)
16246
tetradecimal (14)
114dd
pentadecimal (15)
c744
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβρλθʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋦·𝋳
- Chinese
- 四萬二千一百三十九
- Chinese (financial)
- 肆萬貳仟壹佰參拾玖
In other modern scripts
Eastern Arabic
٤٢١٣٩
Devanagari
४२१३९
Bengali
৪২১৩৯
Tamil
௪௨௧௩௯
Thai
๔๒๑๓๙
Tibetan
༤༢༡༣༩
Khmer
៤២១៣៩
Lao
໔໒໑໓໙
Burmese
၄၂၁၃၉
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,139 = 8
- e — Euler's number (e)
- Digit 42,139 = 2
- φ — Golden ratio (φ)
- Digit 42,139 = 2
- √2 — Pythagoras's (√2)
- Digit 42,139 = 6
- ln 2 — Natural log of 2
- Digit 42,139 = 3
- γ — Euler-Mascheroni (γ)
- Digit 42,139 = 1
Also seen as
Unicode codepoint
꒛
Yi Radical Bbut
U+A49B
Other symbol (So)
UTF-8 encoding: EA 92 9B (3 bytes).
Hex color
#00A49B
RGB(0, 164, 155)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.155.
- Address
- 0.0.164.155
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.155
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 42139 first appears in π at position 225,389 of the decimal expansion (the 225,389ordinal-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.