121,338
121,338 is a composite number, even.
121,338 (one hundred twenty-one thousand three hundred thirty-eight) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2 × 3⁴ × 7 × 107. Its proper divisors sum to 192,294, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1D9FA.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 144
- Digital root
- 9
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 833,121
- Square (n²)
- 14,722,910,244
- Cube (n³)
- 1,786,448,483,186,472
- Divisor count
- 40
- σ(n) — sum of divisors
- 313,632
- φ(n) — Euler's totient
- 34,344
- Sum of prime factors
- 128
Primality
Prime factorization: 2 × 3 4 × 7 × 107
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,338 = [348; (2, 1, 40, 3, 5, 2, 1, 1, 1, 2, 1, 1, 1, 2, 5, 3, 40, 1, 2, 696)]
Period length 20 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-one thousand three hundred thirty-eight
- Ordinal
- 121338th
- Binary
- 11101100111111010
- Octal
- 354772
- Hexadecimal
- 0x1D9FA
- Base64
- Adn6
- One's complement
- 4,294,845,957 (32-bit)
- Scientific notation
- 1.21338 × 10⁵
- As a duration
- 121,338 s = 1 day, 9 hours, 42 minutes, 18 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκατληʹ
- Mayan (base 20)
- 𝋯·𝋣·𝋦·𝋲
- Chinese
- 一十二萬一千三百三十八
- Chinese (financial)
- 壹拾貳萬壹仟參佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121338, here are decompositions:
- 5 + 121333 = 121338
- 11 + 121327 = 121338
- 17 + 121321 = 121338
- 29 + 121309 = 121338
- 47 + 121291 = 121338
- 67 + 121271 = 121338
- 71 + 121267 = 121338
- 79 + 121259 = 121338
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 9D A7 BA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.217.250.
- Address
- 0.1.217.250
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.217.250
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 121,338 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°.