124,842
124,842 is a composite number, even.
124,842 (one hundred twenty-four thousand eight hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 3 × 20,807. Its proper divisors sum to 124,854, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E7AA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 512
- Digital root
- 3
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 248,421
- Recamán's sequence
- a(236,480) = 124,842
- Square (n²)
- 15,585,524,964
- Cube (n³)
- 1,945,728,107,555,688
- Divisor count
- 8
- σ(n) — sum of divisors
- 249,696
- φ(n) — Euler's totient
- 41,612
- Sum of prime factors
- 20,812
Primality
Prime factorization: 2 × 3 × 20807
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√124,842 = [353; (3, 31, 1, 3, 1, 2, 2, 5, 2, 2, 2, 9, 3, 1, 3, 2, 9, 1, 1, 20, 1, 7, 1, 116, …)]
Period length 48 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-four thousand eight hundred forty-two
- Ordinal
- 124842nd
- Binary
- 11110011110101010
- Octal
- 363652
- Hexadecimal
- 0x1E7AA
- Base64
- Aeeq
- One's complement
- 4,294,842,453 (32-bit)
- Scientific notation
- 1.24842 × 10⁵
- As a duration
- 124,842 s = 1 day, 10 hours, 40 minutes, 42 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκδωμβʹ
- Mayan (base 20)
- 𝋯·𝋬·𝋢·𝋢
- Chinese
- 一十二萬四千八百四十二
- Chinese (financial)
- 壹拾貳萬肆仟捌佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 124842, here are decompositions:
- 19 + 124823 = 124842
- 23 + 124819 = 124842
- 43 + 124799 = 124842
- 59 + 124783 = 124842
- 61 + 124781 = 124842
- 71 + 124771 = 124842
- 73 + 124769 = 124842
- 83 + 124759 = 124842
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.231.170.
- Address
- 0.1.231.170
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.231.170
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 124,842 and was likely granted around 1871.
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°.