127,420
127,420 is a composite number, even.
127,420 (one hundred twenty-seven thousand four hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 23 × 277. Its proper divisors sum to 152,804, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1F1BC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,721
- Recamán's sequence
- a(498,527) = 127,420
- Square (n²)
- 16,235,856,400
- Cube (n³)
- 2,068,772,822,488,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 280,224
- φ(n) — Euler's totient
- 48,576
- Sum of prime factors
- 309
Primality
Prime factorization: 2 2 × 5 × 23 × 277
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√127,420 = [356; (1, 23, 1, 1, 1, 1, 1, 2, 9, 79, 4, 1, 1, 2, 5, 1, 1, 3, 1, 4, 3, 1, 1, 8, …)]
Representations
- In words
- one hundred twenty-seven thousand four hundred twenty
- Ordinal
- 127420th
- Binary
- 11111000110111100
- Octal
- 370674
- Hexadecimal
- 0x1F1BC
- Base64
- AfG8
- One's complement
- 4,294,839,875 (32-bit)
- Scientific notation
- 1.2742 × 10⁵
- As a duration
- 127,420 s = 1 day, 11 hours, 23 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρκζυκʹ
- Mayan (base 20)
- 𝋯·𝋲·𝋫·𝋠
- Chinese
- 一十二萬七千四百二十
- Chinese (financial)
- 壹拾貳萬柒仟肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 127420, here are decompositions:
- 17 + 127403 = 127420
- 47 + 127373 = 127420
- 89 + 127331 = 127420
- 131 + 127289 = 127420
- 149 + 127271 = 127420
- 173 + 127247 = 127420
- 179 + 127241 = 127420
- 257 + 127163 = 127420
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.241.188.
- Address
- 0.1.241.188
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.241.188
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 127,420 and was likely granted around 1872.
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.