121,804
121,804 is a composite number, even.
121,804 (one hundred twenty-one thousand eight hundred four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 37 × 823. Written other ways, in hexadecimal, 0x1DBCC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 408,121
- Square (n²)
- 14,836,214,416
- Cube (n³)
- 1,807,110,260,726,464
- Divisor count
- 12
- σ(n) — sum of divisors
- 219,184
- φ(n) — Euler's totient
- 59,184
- Sum of prime factors
- 864
Primality
Prime factorization: 2 2 × 37 × 823
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√121,804 = [349; (232, 1, 2, 77, 4, 2, 25, 2, 2, 4, 1, 7, 1, 4, 15, 1, 1, 1, 14, 5, 4, 1, 1, 4, …)]
Representations
- In words
- one hundred twenty-one thousand eight hundred four
- Ordinal
- 121804th
- Binary
- 11101101111001100
- Octal
- 355714
- Hexadecimal
- 0x1DBCC
- Base64
- AdvM
- One's complement
- 4,294,845,491 (32-bit)
- Scientific notation
- 1.21804 × 10⁵
- As a duration
- 121,804 s = 1 day, 9 hours, 50 minutes, 4 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρκαωδʹ
- Mayan (base 20)
- 𝋯·𝋤·𝋪·𝋤
- Chinese
- 一十二萬一千八百零四
- Chinese (financial)
- 壹拾貳萬壹仟捌佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 121804, here are decompositions:
- 17 + 121787 = 121804
- 41 + 121763 = 121804
- 83 + 121721 = 121804
- 107 + 121697 = 121804
- 167 + 121637 = 121804
- 173 + 121631 = 121804
- 197 + 121607 = 121804
- 227 + 121577 = 121804
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.1.219.204.
- Address
- 0.1.219.204
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.219.204
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 121,804 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 121804 first appears in π at position 622,671 of the decimal expansion (the 622,671ordinal-suffix:st 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.