Base | Representation |
---|---|
bin | 11010110101010… |
… | …01000111110001 |
3 | 120200112122200001 |
4 | 31122221013301 |
5 | 430110303420 |
6 | 34200230001 |
7 | 5402134123 |
oct | 1532510761 |
9 | 520478601 |
10 | 225087985 |
11 | 106068a31 |
12 | 6346b301 |
13 | 3782c575 |
14 | 21c73213 |
15 | 14b62b0a |
hex | d6a91f1 |
225087985 has 8 divisors (see below), whose sum is σ = 273525120. Its totient is φ = 177790704.
The previous prime is 225087923. The next prime is 225088001. The reversal of 225087985 is 589780522.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 225087985 - 213 = 225079793 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284527 + ... + 285316.
It is an arithmetic number, because the mean of its divisors is an integer number (34190640).
Almost surely, 2225087985 is an apocalyptic number.
It is an amenable number.
225087985 is a deficient number, since it is larger than the sum of its proper divisors (48437135).
225087985 is an equidigital number, since it uses as much as digits as its factorization.
225087985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 569927.
The product of its (nonzero) digits is 403200, while the sum is 46.
The square root of 225087985 is about 15002.9325466723. The cubic root of 225087985 is about 608.2994696022.
The spelling of 225087985 in words is "two hundred twenty-five million, eighty-seven thousand, nine hundred eighty-five".
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