138,201
138,201 is a composite number, odd.
138,201 (one hundred thirty-eight thousand two hundred one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3 × 7 × 6,581. Written other ways, in hexadecimal, 0x21BD9.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 102,831
- Recamán's sequence
- a(492,425) = 138,201
- Square (n²)
- 19,099,516,401
- Cube (n³)
- 2,639,572,266,134,601
- Divisor count
- 8
- σ(n) — sum of divisors
- 210,624
- φ(n) — Euler's totient
- 78,960
- Sum of prime factors
- 6,591
Primality
Prime factorization: 3 × 7 × 6581
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,201 = [371; (1, 3, 15, 1, 1, 3, 9, 106, 9, 3, 1, 1, 15, 3, 1, 742)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand two hundred one
- Ordinal
- 138201st
- Binary
- 100001101111011001
- Octal
- 415731
- Hexadecimal
- 0x21BD9
- Base64
- AhvZ
- One's complement
- 4,294,829,094 (32-bit)
- Scientific notation
- 1.38201 × 10⁵
- As a duration
- 138,201 s = 1 day, 14 hours, 23 minutes, 21 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓏺
- Greek (Milesian)
- ͵ρλησαʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋪·𝋡
- Chinese
- 一十三萬八千二百零一
- Chinese (financial)
- 壹拾參萬捌仟貳佰零壹
Also seen as
UTF-8 encoding: F0 A1 AF 99 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.217.
- Address
- 0.2.27.217
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.217
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 138,201 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°.