Base | Representation |
---|---|
bin | 1010001111100… |
… | …01110000101011 |
3 | 12222200102210222 |
4 | 11013301300223 |
5 | 133444044112 |
6 | 12305400255 |
7 | 2062230635 |
oct | 507616053 |
9 | 188612728 |
10 | 85924907 |
11 | 44558722 |
12 | 2493908b |
13 | 14a56153 |
14 | b5a9a55 |
15 | 7824372 |
hex | 51f1c2b |
85924907 has 4 divisors (see below), whose sum is σ = 85956456. Its totient is φ = 85893360.
The previous prime is 85924871. The next prime is 85924913. The reversal of 85924907 is 70942958.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70942958 = 2 ⋅35471479.
It is a cyclic number.
It is not a de Polignac number, because 85924907 - 26 = 85924843 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (85924957) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11258 + ... + 17279.
It is an arithmetic number, because the mean of its divisors is an integer number (21489114).
Almost surely, 285924907 is an apocalyptic number.
85924907 is a deficient number, since it is larger than the sum of its proper divisors (31549).
85924907 is a wasteful number, since it uses less digits than its factorization.
85924907 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31548.
The product of its (nonzero) digits is 181440, while the sum is 44.
The square root of 85924907 is about 9269.5688680758. The cubic root of 85924907 is about 441.2719856257.
The spelling of 85924907 in words is "eighty-five million, nine hundred twenty-four thousand, nine hundred seven".
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