121,018
121,018 is a composite number, even.
121,018 (one hundred twenty-one thousand eighteen) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 60,509. Written other ways, in hexadecimal, 0x1D8BA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 810,121
- Square (n²)
- 14,645,356,324
- Cube (n³)
- 1,772,351,731,617,832
- Divisor count
- 4
- σ(n) — sum of divisors
- 181,530
- φ(n) — Euler's totient
- 60,508
- Sum of prime factors
- 60,511
Primality
Prime factorization: 2 × 60509
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,018 = [347; (1, 7, 10, 1, 11, 3, 2, 1, 1, 1, 5, 1, 1, 1, 3, 3, 1, 1, 4, 1, 1, 1, 2, 16, …)]
Representations
- In words
- one hundred twenty-one thousand eighteen
- Ordinal
- 121018th
- Binary
- 11101100010111010
- Octal
- 354272
- Hexadecimal
- 0x1D8BA
- Base64
- Adi6
- One's complement
- 4,294,846,277 (32-bit)
- Scientific notation
- 1.21018 × 10⁵
- As a duration
- 121,018 s = 1 day, 9 hours, 36 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκαιηʹ
- Mayan (base 20)
- 𝋯·𝋢·𝋪·𝋲
- Chinese
- 一十二萬一千零一十八
- Chinese (financial)
- 壹拾貳萬壹仟零壹拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121018, here are decompositions:
- 5 + 121013 = 121018
- 11 + 121007 = 121018
- 17 + 121001 = 121018
- 41 + 120977 = 121018
- 71 + 120947 = 121018
- 89 + 120929 = 121018
- 101 + 120917 = 121018
- 167 + 120851 = 121018
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D A2 BA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.216.186.
- Address
- 0.1.216.186
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.216.186
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 121,018 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.