121,020
121,020 is a composite number, even.
121,020 (one hundred twenty-one thousand twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 5 × 2,017. Its proper divisors sum to 218,004, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1D8BC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 6
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 20,121
- Square (n²)
- 14,645,840,400
- Cube (n³)
- 1,772,439,605,208,000
- Divisor count
- 24
- σ(n) — sum of divisors
- 339,024
- φ(n) — Euler's totient
- 32,256
- Sum of prime factors
- 2,029
Primality
Prime factorization: 2 2 × 3 × 5 × 2017
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,020 = [347; (1, 7, 3, 1, 1, 13, 1, 1, 1, 2, 2, 1, 1, 1, 2, 1, 15, 11, 2, 1, 11, 1, 2, 1, …)]
Representations
- In words
- one hundred twenty-one thousand twenty
- Ordinal
- 121020th
- Binary
- 11101100010111100
- Octal
- 354274
- Hexadecimal
- 0x1D8BC
- Base64
- Adi8
- One's complement
- 4,294,846,275 (32-bit)
- Scientific notation
- 1.2102 × 10⁵
- As a duration
- 121,020 s = 1 day, 9 hours, 37 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓎆𓎆
- Greek (Milesian)
- ͵ρκακʹ
- Mayan (base 20)
- 𝋯·𝋢·𝋫·𝋠
- Chinese
- 一十二萬一千零二十
- Chinese (financial)
- 壹拾貳萬壹仟零貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121020, here are decompositions:
- 7 + 121013 = 121020
- 13 + 121007 = 121020
- 19 + 121001 = 121020
- 23 + 120997 = 121020
- 43 + 120977 = 121020
- 73 + 120947 = 121020
- 79 + 120941 = 121020
- 83 + 120937 = 121020
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D A2 BC (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.216.188.
- Address
- 0.1.216.188
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.216.188
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 121,020 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°.