138,149
138,149 is a composite number, odd.
138,149 (one hundred thirty-eight thousand one hundred forty-nine) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 11 × 19 × 661. Written other ways, in hexadecimal, 0x21BA5.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 864
- Digital root
- 8
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 941,831
- Recamán's sequence
- a(492,529) = 138,149
- Square (n²)
- 19,085,146,201
- Cube (n³)
- 2,636,593,862,521,949
- Divisor count
- 8
- σ(n) — sum of divisors
- 158,880
- φ(n) — Euler's totient
- 118,800
- Sum of prime factors
- 691
Primality
Prime factorization: 11 × 19 × 661
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,149 = [371; (1, 2, 6, 13, 2, 1, 3, 1, 6, 29, 1, 1, 2, 2, 1, 3, 4, 36, 1, 14, 5, 16, 1, 2, …)]
Representations
- In words
- one hundred thirty-eight thousand one hundred forty-nine
- Ordinal
- 138149th
- Binary
- 100001101110100101
- Octal
- 415645
- Hexadecimal
- 0x21BA5
- Base64
- Ahul
- One's complement
- 4,294,829,146 (32-bit)
- Scientific notation
- 1.38149 × 10⁵
- As a duration
- 138,149 s = 1 day, 14 hours, 22 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληρμθʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋧·𝋩
- Chinese
- 一十三萬八千一百四十九
- Chinese (financial)
- 壹拾參萬捌仟壹佰肆拾玖
Also seen as
UTF-8 encoding: F0 A1 AE A5 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.165.
- Address
- 0.2.27.165
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.165
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 138,149 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.