138,124
138,124 is a composite number, even.
138,124 (one hundred thirty-eight thousand one hundred twenty-four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 7 × 4,933. Its proper divisors sum to 138,180, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x21B8C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 192
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 421,831
- Recamán's sequence
- a(492,579) = 138,124
- Square (n²)
- 19,078,239,376
- Cube (n³)
- 2,635,162,735,570,624
- Divisor count
- 12
- σ(n) — sum of divisors
- 276,304
- φ(n) — Euler's totient
- 59,184
- Sum of prime factors
- 4,944
Primality
Prime factorization: 2 2 × 7 × 4933
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,124 = [371; (1, 1, 1, 6, 6, 1, 1, 4, 1, 7, 1, 12, 2, 1, 1, 2, 2, 1, 1, 2, 1, 3, 2, 10, …)]
Period length 52 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand one hundred twenty-four
- Ordinal
- 138124th
- Binary
- 100001101110001100
- Octal
- 415614
- Hexadecimal
- 0x21B8C
- Base64
- AhuM
- One's complement
- 4,294,829,171 (32-bit)
- Scientific notation
- 1.38124 × 10⁵
- As a duration
- 138,124 s = 1 day, 14 hours, 22 minutes, 4 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληρκδʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋦·𝋤
- Chinese
- 一十三萬八千一百二十四
- Chinese (financial)
- 壹拾參萬捌仟壹佰貳拾肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138124, here are decompositions:
- 11 + 138113 = 138124
- 17 + 138107 = 138124
- 23 + 138101 = 138124
- 47 + 138077 = 138124
- 53 + 138071 = 138124
- 71 + 138053 = 138124
- 83 + 138041 = 138124
- 131 + 137993 = 138124
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A1 AE 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.140.
- Address
- 0.2.27.140
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.140
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 138,124 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 138124 first appears in π at position 473,050 of the decimal expansion (the 473,050ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.