138,765
138,765 is a composite number, odd.
138,765 (one hundred thirty-eight thousand seven hundred sixty-five) is an odd 6-digit number. It is a composite number with 24 divisors, and factors as 3 × 5 × 11 × 29². Written other ways, in hexadecimal, 0x21E0D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 30
- Digit product
- 5,040
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 567,831
- Recamán's sequence
- a(491,297) = 138,765
- Square (n²)
- 19,255,725,225
- Cube (n³)
- 2,672,020,710,847,125
- Divisor count
- 24
- σ(n) — sum of divisors
- 250,848
- φ(n) — Euler's totient
- 64,960
- Sum of prime factors
- 77
Primality
Prime factorization: 3 × 5 × 11 × 29 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,765 = [372; (1, 1, 20, 1, 3, 1, 2, 14, 1, 5, 1, 1, 5, 4, 4, 2, 1, 1, 2, 1, 4, 3, 1, 1, …)]
Representations
- In words
- one hundred thirty-eight thousand seven hundred sixty-five
- Ordinal
- 138765th
- Binary
- 100001111000001101
- Octal
- 417015
- Hexadecimal
- 0x21E0D
- Base64
- Ah4N
- One's complement
- 4,294,828,530 (32-bit)
- Scientific notation
- 1.38765 × 10⁵
- As a duration
- 138,765 s = 1 day, 14 hours, 32 minutes, 45 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληψξεʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋲·𝋥
- Chinese
- 一十三萬八千七百六十五
- Chinese (financial)
- 壹拾參萬捌仟柒佰陸拾伍
Also seen as
UTF-8 encoding: F0 A1 B8 8D (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.30.13.
- Address
- 0.2.30.13
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.30.13
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 138,765 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.