121,438
121,438 is a composite number, even.
121,438 (one hundred twenty-one thousand four hundred thirty-eight) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 60,719. Written other ways, in hexadecimal, 0x1DA5E.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 192
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 834,121
- Square (n²)
- 14,747,187,844
- Cube (n³)
- 1,790,868,997,399,672
- Divisor count
- 4
- σ(n) — sum of divisors
- 182,160
- φ(n) — Euler's totient
- 60,718
- Sum of prime factors
- 60,721
Primality
Prime factorization: 2 × 60719
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,438 = [348; (2, 11, 1, 2, 1, 2, 18, 2, 8, 1, 1, 3, 2, 1, 2, 1, 3, 12, 1, 1, 1, 3, 3, 1, …)]
Representations
- In words
- one hundred twenty-one thousand four hundred thirty-eight
- Ordinal
- 121438th
- Binary
- 11101101001011110
- Octal
- 355136
- Hexadecimal
- 0x1DA5E
- Base64
- Adpe
- One's complement
- 4,294,845,857 (32-bit)
- Scientific notation
- 1.21438 × 10⁵
- As a duration
- 121,438 s = 1 day, 9 hours, 43 minutes, 58 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκαυληʹ
- Mayan (base 20)
- 𝋯·𝋣·𝋫·𝋲
- Chinese
- 一十二萬一千四百三十八
- Chinese (financial)
- 壹拾貳萬壹仟肆佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121438, here are decompositions:
- 17 + 121421 = 121438
- 59 + 121379 = 121438
- 71 + 121367 = 121438
- 89 + 121349 = 121438
- 167 + 121271 = 121438
- 179 + 121259 = 121438
- 257 + 121181 = 121438
- 269 + 121169 = 121438
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D A9 9E (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.218.94.
- Address
- 0.1.218.94
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.218.94
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 121,438 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.