139,421
139,421 is a composite number, odd.
139,421 (one hundred thirty-nine thousand four hundred twenty-one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 107 × 1,303. Written other ways, in hexadecimal, 0x2209D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 216
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 124,931
- Recamán's sequence
- a(489,985) = 139,421
- Square (n²)
- 19,438,215,241
- Cube (n³)
- 2,710,095,407,115,461
- Divisor count
- 4
- σ(n) — sum of divisors
- 140,832
- φ(n) — Euler's totient
- 138,012
- Sum of prime factors
- 1,410
Primality
Prime factorization: 107 × 1303
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√139,421 = [373; (2, 1, 1, 3, 1, 20, 1, 1, 4, 7, 1, 8, 1, 1, 2, 1, 5, 1, 3, 2, 26, 4, 2, 1, …)]
Representations
- In words
- one hundred thirty-nine thousand four hundred twenty-one
- Ordinal
- 139421st
- Binary
- 100010000010011101
- Octal
- 420235
- Hexadecimal
- 0x2209D
- Base64
- AiCd
- One's complement
- 4,294,827,874 (32-bit)
- Scientific notation
- 1.39421 × 10⁵
- As a duration
- 139,421 s = 1 day, 14 hours, 43 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρλθυκαʹ
- Mayan (base 20)
- 𝋱·𝋨·𝋫·𝋡
- Chinese
- 一十三萬九千四百二十一
- Chinese (financial)
- 壹拾參萬玖仟肆佰貳拾壹
Also seen as
UTF-8 encoding: F0 A2 82 9D (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.32.157.
- Address
- 0.2.32.157
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.32.157
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 139,421 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 139421 first appears in π at position 291,318 of the decimal expansion (the 291,318ordinal-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.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.