Base | Representation |
---|---|
bin | 1010110011011… |
… | …01101100110100 |
3 | 20022112022200200 |
4 | 11121231230310 |
5 | 141200024433 |
6 | 12554240500 |
7 | 2150213163 |
oct | 531555464 |
9 | 208468620 |
10 | 90626868 |
11 | 4717a342 |
12 | 26426130 |
13 | 15a11387 |
14 | c0713da |
15 | 7e52613 |
hex | 566db34 |
90626868 has 36 divisors (see below), whose sum is σ = 229373508. Its totient is φ = 30170880.
The previous prime is 90626863. The next prime is 90626917. The reversal of 90626868 is 86862609.
It can be written as a sum of positive squares in 2 ways, for example, as 37307664 + 53319204 = 6108^2 + 7302^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90626863) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55098 + ... + 56718.
Almost surely, 290626868 is an apocalyptic number.
It is an amenable number.
90626868 is an abundant number, since it is smaller than the sum of its proper divisors (138746640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90626868 is a wasteful number, since it uses less digits than its factorization.
90626868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3184 (or 3179 counting only the distinct ones).
The product of its (nonzero) digits is 248832, while the sum is 45.
The square root of 90626868 is about 9519.8144939909. The cubic root of 90626868 is about 449.1785309613.
The spelling of 90626868 in words is "ninety million, six hundred twenty-six thousand, eight hundred sixty-eight".
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