138,013
138,013 is a composite number, odd.
138,013 (one hundred thirty-eight thousand thirteen) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 79 × 1,747. Written other ways, in hexadecimal, 0x21B1D.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 310,831
- Recamán's sequence
- a(492,801) = 138,013
- Square (n²)
- 19,047,588,169
- Cube (n³)
- 2,628,814,785,968,197
- Divisor count
- 4
- σ(n) — sum of divisors
- 139,840
- φ(n) — Euler's totient
- 136,188
- Sum of prime factors
- 1,826
Primality
Prime factorization: 79 × 1747
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,013 = [371; (1, 1, 247, 5, 1, 81, 1, 2, 1, 1, 1, 1, 26, 1, 9, 1, 4, 8, 1, 31, 2, 2, 2, 1, …)]
Representations
- In words
- one hundred thirty-eight thousand thirteen
- Ordinal
- 138013th
- Binary
- 100001101100011101
- Octal
- 415435
- Hexadecimal
- 0x21B1D
- Base64
- Ahsd
- One's complement
- 4,294,829,282 (32-bit)
- Scientific notation
- 1.38013 × 10⁵
- As a duration
- 138,013 s = 1 day, 14 hours, 20 minutes, 13 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληιγʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋠·𝋭
- Chinese
- 一十三萬八千零一十三
- Chinese (financial)
- 壹拾參萬捌仟零壹拾參
Also seen as
UTF-8 encoding: F0 A1 AC 9D (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.29.
- Address
- 0.2.27.29
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.29
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 138,013 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.