124,820
124,820 is a composite number, even.
124,820 (one hundred twenty-four thousand eight hundred twenty) is an even 6-digit number. It is a composite number with 18 divisors, and factors as 2² × 5 × 79². Its proper divisors sum to 140,662, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E794.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 17
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 28,421
- Recamán's sequence
- a(236,524) = 124,820
- Square (n²)
- 15,580,032,400
- Cube (n³)
- 1,944,699,644,168,000
- Divisor count
- 18
- σ(n) — sum of divisors
- 265,482
- φ(n) — Euler's totient
- 49,296
- Sum of prime factors
- 167
Primality
Prime factorization: 2 2 × 5 × 79 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√124,820 = [353; (3, 2, 1, 7, 4, 5, 1, 1, 2, 15, 1, 1, 1, 140, 1, 1, 1, 15, 2, 1, 1, 5, 4, 7, …)]
Period length 28 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-four thousand eight hundred twenty
- Ordinal
- 124820th
- Binary
- 11110011110010100
- Octal
- 363624
- Hexadecimal
- 0x1E794
- Base64
- AeeU
- One's complement
- 4,294,842,475 (32-bit)
- Scientific notation
- 1.2482 × 10⁵
- As a duration
- 124,820 s = 1 day, 10 hours, 40 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρκδωκʹ
- Mayan (base 20)
- 𝋯·𝋬·𝋡·𝋠
- Chinese
- 一十二萬四千八百二十
- Chinese (financial)
- 壹拾貳萬肆仟捌佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 124820, here are decompositions:
- 37 + 124783 = 124820
- 43 + 124777 = 124820
- 61 + 124759 = 124820
- 67 + 124753 = 124820
- 103 + 124717 = 124820
- 127 + 124693 = 124820
- 151 + 124669 = 124820
- 277 + 124543 = 124820
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.231.148.
- Address
- 0.1.231.148
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.231.148
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 124,820 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 124820 first appears in π at position 46,710 of the decimal expansion (the 46,710ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.