121,604
121,604 is a composite number, even.
121,604 (one hundred twenty-one thousand six hundred four) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 7 × 43 × 101. Its proper divisors sum to 129,724, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1DB04.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 14
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 406,121
- Square (n²)
- 14,787,532,816
- Cube (n³)
- 1,798,223,140,556,864
- Divisor count
- 24
- σ(n) — sum of divisors
- 251,328
- φ(n) — Euler's totient
- 50,400
- Sum of prime factors
- 155
Primality
Prime factorization: 2 2 × 7 × 43 × 101
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,604 = [348; (1, 2, 1, 1, 5, 2, 36, 4, 36, 2, 5, 1, 1, 2, 1, 696)]
Period length 16 — the block in parentheses repeats forever.
Representations
- In words
- one hundred twenty-one thousand six hundred four
- Ordinal
- 121604th
- Binary
- 11101101100000100
- Octal
- 355404
- Hexadecimal
- 0x1DB04
- Base64
- AdsE
- One's complement
- 4,294,845,691 (32-bit)
- Scientific notation
- 1.21604 × 10⁵
- As a duration
- 121,604 s = 1 day, 9 hours, 46 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκαχδʹ
- Mayan (base 20)
- 𝋯·𝋤·𝋠·𝋤
- Chinese
- 一十二萬一千六百零四
- Chinese (financial)
- 壹拾貳萬壹仟陸佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121604, here are decompositions:
- 13 + 121591 = 121604
- 73 + 121531 = 121604
- 97 + 121507 = 121604
- 103 + 121501 = 121604
- 151 + 121453 = 121604
- 157 + 121447 = 121604
- 163 + 121441 = 121604
- 271 + 121333 = 121604
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.219.4.
- Address
- 0.1.219.4
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.219.4
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 121,604 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 121604 first appears in π at position 171,578 of the decimal expansion (the 171,578ordinal-suffix:th digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.