155,008
155,008 is a composite number, even.
155,008 (one hundred fifty-five thousand eight) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2⁷ × 7 × 173. Its proper divisors sum to 199,952, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x25D80.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 19
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 800,551
- Recamán's sequence
- a(47,124) = 155,008
- Square (n²)
- 24,027,480,064
- Cube (n³)
- 3,724,451,629,760,512
- Divisor count
- 32
- σ(n) — sum of divisors
- 354,960
- φ(n) — Euler's totient
- 66,048
- Sum of prime factors
- 194
Primality
Prime factorization: 2 7 × 7 × 173
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√155,008 = [393; (1, 2, 2, 5, 25, 4, 1, 1, 1, 1, 1, 2, 3, 1, 4, 5, 1, 1, 6, 13, 1, 1, 1, 21, …)]
Representations
- In words
- one hundred fifty-five thousand eight
- Ordinal
- 155008th
- Binary
- 100101110110000000
- Octal
- 456600
- Hexadecimal
- 0x25D80
- Base64
- Al2A
- One's complement
- 4,294,812,287 (32-bit)
- Scientific notation
- 1.55008 × 10⁵
- As a duration
- 155,008 s = 1 day, 19 hours, 3 minutes, 28 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρνεηʹ
- Mayan (base 20)
- 𝋳·𝋧·𝋪·𝋨
- Chinese
- 一十五萬五千零八
- Chinese (financial)
- 壹拾伍萬伍仟零捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 155008, here are decompositions:
- 5 + 155003 = 155008
- 17 + 154991 = 155008
- 71 + 154937 = 155008
- 131 + 154877 = 155008
- 137 + 154871 = 155008
- 167 + 154841 = 155008
- 239 + 154769 = 155008
- 281 + 154727 = 155008
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 A5 B6 80 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.93.128.
- Address
- 0.2.93.128
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.93.128
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 155,008 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 155008 first appears in π at position 433,334 of the decimal expansion (the 433,334ordinal-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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.