138,171
138,171 is a composite number, odd.
138,171 (one hundred thirty-eight thousand one hundred seventy-one) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3 × 11 × 53 × 79. Written other ways, in hexadecimal, 0x21BBB.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 168
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 171,831
- Recamán's sequence
- a(492,485) = 138,171
- Square (n²)
- 19,091,225,241
- Cube (n³)
- 2,637,853,682,774,211
- Divisor count
- 16
- σ(n) — sum of divisors
- 207,360
- φ(n) — Euler's totient
- 81,120
- Sum of prime factors
- 146
Primality
Prime factorization: 3 × 11 × 53 × 79
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,171 = [371; (1, 2, 2, 29, 3, 4, 6, 1, 2, 1, 1, 7, 11, 7, 1, 1, 2, 1, 6, 4, 3, 29, 2, 2, …)]
Period length 26 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand one hundred seventy-one
- Ordinal
- 138171st
- Binary
- 100001101110111011
- Octal
- 415673
- Hexadecimal
- 0x21BBB
- Base64
- Ahu7
- One's complement
- 4,294,829,124 (32-bit)
- Scientific notation
- 1.38171 × 10⁵
- As a duration
- 138,171 s = 1 day, 14 hours, 22 minutes, 51 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρληροαʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋨·𝋫
- Chinese
- 一十三萬八千一百七十一
- Chinese (financial)
- 壹拾參萬捌仟壹佰柒拾壹
Also seen as
UTF-8 encoding: F0 A1 AE BB (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.187.
- Address
- 0.2.27.187
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.187
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 138,171 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°.