Base | Representation |
---|---|
bin | 1010110001111… |
… | …11010111011101 |
3 | 20022011200100200 |
4 | 11120333113131 |
5 | 141122441320 |
6 | 12550214113 |
7 | 2145462654 |
oct | 530772735 |
9 | 208150320 |
10 | 90437085 |
11 | 4705a7a2 |
12 | 26354339 |
13 | 15975b8b |
14 | c02219b |
15 | 7e16290 |
hex | 563f5dd |
90437085 has 12 divisors (see below), whose sum is σ = 156757692. Its totient is φ = 48233088.
The previous prime is 90437047. The next prime is 90437099. The reversal of 90437085 is 58073409.
It can be written as a sum of positive squares in 2 ways, for example, as 39200121 + 51236964 = 6261^2 + 7158^2 .
It is a de Polignac number, because none of the positive numbers 2k-90437085 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1004812 + ... + 1004901.
It is an arithmetic number, because the mean of its divisors is an integer number (13063141).
Almost surely, 290437085 is an apocalyptic number.
It is an amenable number.
90437085 is a deficient number, since it is larger than the sum of its proper divisors (66320607).
90437085 is a wasteful number, since it uses less digits than its factorization.
90437085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2009724 (or 2009721 counting only the distinct ones).
The product of its (nonzero) digits is 30240, while the sum is 36.
The square root of 90437085 is about 9509.8414813287. The cubic root of 90437085 is about 448.8647681460.
The spelling of 90437085 in words is "ninety million, four hundred thirty-seven thousand, eighty-five".
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