Base | Representation |
---|---|
bin | 1010011001101… |
… | …10110010000011 |
3 | 20002012001222221 |
4 | 11030312302003 |
5 | 134314144240 |
6 | 12354111511 |
7 | 2106444145 |
oct | 514666203 |
9 | 202161887 |
10 | 87256195 |
11 | 45287964 |
12 | 2527b597 |
13 | 151010b0 |
14 | b834c95 |
15 | 79d8a4a |
hex | 5336c83 |
87256195 has 8 divisors (see below), whose sum is σ = 112761936. Its totient is φ = 64435296.
The previous prime is 87256193. The next prime is 87256199. The reversal of 87256195 is 59165278.
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 87256195 - 21 = 87256193 is a prime.
It is a super-2 number, since 2×872561952 = 15227287131756050, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87256193) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671137 + ... + 671266.
It is an arithmetic number, because the mean of its divisors is an integer number (14095242).
Almost surely, 287256195 is an apocalyptic number.
87256195 is a deficient number, since it is larger than the sum of its proper divisors (25505741).
87256195 is a wasteful number, since it uses less digits than its factorization.
87256195 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1342421.
The product of its digits is 151200, while the sum is 43.
The square root of 87256195 is about 9341.1024509958. The cubic root of 87256195 is about 443.5392831471.
The spelling of 87256195 in words is "eighty-seven million, two hundred fifty-six thousand, one hundred ninety-five".
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