121,442
121,442 is a composite number, even.
121,442 (one hundred twenty-one thousand four hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 41 × 1,481. Written other ways, in hexadecimal, 0x1DA62.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 64
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 244,121
- Square (n²)
- 14,748,159,364
- Cube (n³)
- 1,791,045,969,482,888
- Divisor count
- 8
- σ(n) — sum of divisors
- 186,732
- φ(n) — Euler's totient
- 59,200
- Sum of prime factors
- 1,524
Primality
Prime factorization: 2 × 41 × 1481
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,442 = [348; (2, 16, 2, 696)]
Period length 4 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-one thousand four hundred forty-two
- Ordinal
- 121442nd
- Binary
- 11101101001100010
- Octal
- 355142
- Hexadecimal
- 0x1DA62
- Base64
- Adpi
- One's complement
- 4,294,845,853 (32-bit)
- Scientific notation
- 1.21442 × 10⁵
- As a duration
- 121,442 s = 1 day, 9 hours, 44 minutes, 2 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρκαυμβʹ
- Mayan (base 20)
- 𝋯·𝋣·𝋬·𝋢
- Chinese
- 一十二萬一千四百四十二
- Chinese (financial)
- 壹拾貳萬壹仟肆佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121442, here are decompositions:
- 3 + 121439 = 121442
- 73 + 121369 = 121442
- 109 + 121333 = 121442
- 151 + 121291 = 121442
- 271 + 121171 = 121442
- 379 + 121063 = 121442
- 421 + 121021 = 121442
- 499 + 120943 = 121442
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D A9 A2 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.218.98.
- Address
- 0.1.218.98
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.218.98
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 121,442 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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.