42,109
42,109 is a composite number, odd.
42,109 (forty-two thousand one hundred nine) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 17 × 2,477. Written other ways, in hexadecimal, 0xA47D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 90,124
- Recamán's sequence
- a(151,405) = 42,109
- Square (n²)
- 1,773,167,881
- Cube (n³)
- 74,666,326,301,029
- Divisor count
- 4
- σ(n) — sum of divisors
- 44,604
- φ(n) — Euler's totient
- 39,616
- Sum of prime factors
- 2,494
Primality
Prime factorization: 17 × 2477
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√42,109 = [205; (4, 1, 7, 1, 1, 2, 1, 4, 5, 1, 10, 1, 1, 3, 1, 1, 2, 1, 1, 4, 1, 4, 1, 1, …)]
Representations
- In words
- forty-two thousand one hundred nine
- Ordinal
- 42109th
- Binary
- 1010010001111101
- Octal
- 122175
- Hexadecimal
- 0xA47D
- Base64
- pH0=
- One's complement
- 23,426 (16-bit)
- Scientific notation
- 4.2109 × 10⁴
- As a duration
- 42,109 s = 11 hours, 41 minutes, 49 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵μβρθʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋥·𝋩
- Chinese
- 四萬二千一百零九
- Chinese (financial)
- 肆萬貳仟壹佰零玖
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,109 = 1
- e — Euler's number (e)
- Digit 42,109 = 0
- φ — Golden ratio (φ)
- Digit 42,109 = 1
- √2 — Pythagoras's (√2)
- Digit 42,109 = 8
- ln 2 — Natural log of 2
- Digit 42,109 = 6
- γ — Euler-Mascheroni (γ)
- Digit 42,109 = 6
Also seen as
UTF-8 encoding: EA 91 BD (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.125.
- Address
- 0.0.164.125
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.125
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 42109 first appears in π at position 127,322 of the decimal expansion (the 127,322ordinal-suffix:nd 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.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.