124,720
124,720 is a composite number, even.
124,720 (one hundred twenty-four thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 5 × 1,559. Its proper divisors sum to 165,440, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E730.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 27,421
- Recamán's sequence
- a(236,724) = 124,720
- Square (n²)
- 15,555,078,400
- Cube (n³)
- 1,940,029,378,048,000
- Divisor count
- 20
- σ(n) — sum of divisors
- 290,160
- φ(n) — Euler's totient
- 49,856
- Sum of prime factors
- 1,572
Primality
Prime factorization: 2 4 × 5 × 1559
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√124,720 = [353; (6, 2, 1, 3, 4, 5, 1, 5, 1, 7, 1, 6, 2, 7, 1, 16, 2, 1, 8, 1, 1, 1, 1, 1, …)]
Representations
- In words
- one hundred twenty-four thousand seven hundred twenty
- Ordinal
- 124720th
- Binary
- 11110011100110000
- Octal
- 363460
- Hexadecimal
- 0x1E730
- Base64
- Aecw
- One's complement
- 4,294,842,575 (32-bit)
- Scientific notation
- 1.2472 × 10⁵
- As a duration
- 124,720 s = 1 day, 10 hours, 38 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρκδψκʹ
- Mayan (base 20)
- 𝋯·𝋫·𝋰·𝋠
- Chinese
- 一十二萬四千七百二十
- Chinese (financial)
- 壹拾貳萬肆仟柒佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 124720, here are decompositions:
- 3 + 124717 = 124720
- 17 + 124703 = 124720
- 41 + 124679 = 124720
- 47 + 124673 = 124720
- 179 + 124541 = 124720
- 191 + 124529 = 124720
- 227 + 124493 = 124720
- 293 + 124427 = 124720
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.231.48.
- Address
- 0.1.231.48
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.231.48
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 124,720 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.