155,804
155,804 is a composite number, even.
155,804 (one hundred fifty-five thousand eight hundred four) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 11 × 3,541. Written other ways, in hexadecimal, 0x2609C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 408,551
- Recamán's sequence
- a(206,256) = 155,804
- Square (n²)
- 24,274,886,416
- Cube (n³)
- 3,782,124,403,158,464
- Divisor count
- 12
- σ(n) — sum of divisors
- 297,528
- φ(n) — Euler's totient
- 70,800
- Sum of prime factors
- 3,556
Primality
Prime factorization: 2 2 × 11 × 3541
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√155,804 = [394; (1, 2, 1, 1, 2, 1, 9, 1, 2, 157, 1, 1, 5, 5, 1, 1, 1, 1, 1, 6, 1, 30, 1, 2, …)]
Representations
- In words
- one hundred fifty-five thousand eight hundred four
- Ordinal
- 155804th
- Binary
- 100110000010011100
- Octal
- 460234
- Hexadecimal
- 0x2609C
- Base64
- AmCc
- One's complement
- 4,294,811,491 (32-bit)
- Scientific notation
- 1.55804 × 10⁵
- As a duration
- 155,804 s = 1 day, 19 hours, 16 minutes, 44 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρνεωδʹ
- Mayan (base 20)
- 𝋳·𝋩·𝋪·𝋤
- Chinese
- 一十五萬五千八百零四
- Chinese (financial)
- 壹拾伍萬伍仟捌佰零肆
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 155804, here are decompositions:
- 3 + 155801 = 155804
- 7 + 155797 = 155804
- 31 + 155773 = 155804
- 73 + 155731 = 155804
- 97 + 155707 = 155804
- 151 + 155653 = 155804
- 211 + 155593 = 155804
- 223 + 155581 = 155804
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A6 82 9C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.96.156.
- Address
- 0.2.96.156
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.96.156
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 155,804 and was likely granted around 1873.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 155804 first appears in π at position 50,291 of the decimal expansion (the 50,291ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.