138,162
138,162 is a composite number, even.
138,162 (one hundred thirty-eight thousand one hundred sixty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 23,027. Its proper divisors sum to 138,174, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21BB2.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 288
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 261,831
- Recamán's sequence
- a(492,503) = 138,162
- Square (n²)
- 19,088,738,244
- Cube (n³)
- 2,637,338,253,267,528
- Divisor count
- 8
- σ(n) — sum of divisors
- 276,336
- φ(n) — Euler's totient
- 46,052
- Sum of prime factors
- 23,032
Primality
Prime factorization: 2 × 3 × 23027
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,162 = [371; (1, 2, 2, 1, 5, 1, 370, 1, 5, 1, 2, 2, 1, 742)]
Period length 14 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand one hundred sixty-two
- Ordinal
- 138162nd
- Binary
- 100001101110110010
- Octal
- 415662
- Hexadecimal
- 0x21BB2
- Base64
- Ahuy
- One's complement
- 4,294,829,133 (32-bit)
- Scientific notation
- 1.38162 × 10⁵
- As a duration
- 138,162 s = 1 day, 14 hours, 22 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρληρξβʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋨·𝋢
- Chinese
- 一十三萬八千一百六十二
- Chinese (financial)
- 壹拾參萬捌仟壹佰陸拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138162, here are decompositions:
- 5 + 138157 = 138162
- 19 + 138143 = 138162
- 23 + 138139 = 138162
- 61 + 138101 = 138162
- 83 + 138079 = 138162
- 103 + 138059 = 138162
- 109 + 138053 = 138162
- 163 + 137999 = 138162
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 AE B2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.178.
- Address
- 0.2.27.178
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.178
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 138,162 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 138162 first appears in π at position 537,935 of the decimal expansion (the 537,935ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.