120,820
120,820 is a composite number, even.
120,820 (one hundred twenty thousand eight hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 7 × 863. Its proper divisors sum to 169,484, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1D7F4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 28,021
- Square (n²)
- 14,597,472,400
- Cube (n³)
- 1,763,666,615,368,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 290,304
- φ(n) — Euler's totient
- 41,376
- Sum of prime factors
- 879
Primality
Prime factorization: 2 2 × 5 × 7 × 863
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√120,820 = [347; (1, 1, 2, 4, 2, 2, 1, 23, 3, 1, 4, 1, 1, 4, 8, 2, 7, 1, 4, 8, 2, 1, 1, 1, …)]
Representations
- In words
- one hundred twenty thousand eight hundred twenty
- Ordinal
- 120820th
- Binary
- 11101011111110100
- Octal
- 353764
- Hexadecimal
- 0x1D7F4
- Base64
- Adf0
- One's complement
- 4,294,846,475 (32-bit)
- Scientific notation
- 1.2082 × 10⁵
- As a duration
- 120,820 s = 1 day, 9 hours, 33 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρκωκʹ
- Mayan (base 20)
- 𝋯·𝋢·𝋡·𝋠
- Chinese
- 一十二萬零八百二十
- Chinese (financial)
- 壹拾貳萬零捌佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 120820, here are decompositions:
- 3 + 120817 = 120820
- 41 + 120779 = 120820
- 53 + 120767 = 120820
- 71 + 120749 = 120820
- 83 + 120737 = 120820
- 107 + 120713 = 120820
- 131 + 120689 = 120820
- 149 + 120671 = 120820
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D 9F B4 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.215.244.
- Address
- 0.1.215.244
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.215.244
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 120,820 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.