Base | Representation |
---|---|
bin | 1010110001100… |
… | …10110100001010 |
3 | 20022002001211120 |
4 | 11120302310022 |
5 | 141114320144 |
6 | 12545140110 |
7 | 2145160041 |
oct | 530626412 |
9 | 208061746 |
10 | 90385674 |
11 | 47025105 |
12 | 2632a636 |
13 | 15958662 |
14 | c00b558 |
15 | 7e05e19 |
hex | 5632d0a |
90385674 has 16 divisors (see below), whose sum is σ = 180925920. Its totient is φ = 30102800.
The previous prime is 90385661. The next prime is 90385697. The reversal of 90385674 is 47658309.
It is a happy number.
It is an alternating number because its digits alternate between odd and even.
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, 2017 + ... + 13595.
It is an arithmetic number, because the mean of its divisors is an integer number (11307870).
Almost surely, 290385674 is an apocalyptic number.
90385674 is an abundant number, since it is smaller than the sum of its proper divisors (90540246).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90385674 is a wasteful number, since it uses less digits than its factorization.
90385674 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12885.
The product of its (nonzero) digits is 181440, while the sum is 42.
The square root of 90385674 is about 9507.1380551668. The cubic root of 90385674 is about 448.7796962577.
The spelling of 90385674 in words is "ninety million, three hundred eighty-five thousand, six hundred seventy-four".
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