Base | Representation |
---|---|
bin | 1010110101010… |
… | …10011101100100 |
3 | 20022222222002110 |
4 | 11122222131210 |
5 | 141231010443 |
6 | 13003441020 |
7 | 2152300605 |
oct | 532523544 |
9 | 208888073 |
10 | 90875748 |
11 | 4732a327 |
12 | 26526170 |
13 | 15a9a742 |
14 | c0d7dac |
15 | 7ea1233 |
hex | 56aa764 |
90875748 has 24 divisors (see below), whose sum is σ = 213665760. Its totient is φ = 30060160.
The previous prime is 90875731. The next prime is 90875749. The reversal of 90875748 is 84757809.
It is a junction number, because it is equal to n+sod(n) for n = 90875697 and 90875706.
It is not an unprimeable number, because it can be changed into a prime (90875749) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27333 + ... + 30476.
It is an arithmetic number, because the mean of its divisors is an integer number (8902740).
Almost surely, 290875748 is an apocalyptic number.
It is an amenable number.
90875748 is an abundant number, since it is smaller than the sum of its proper divisors (122790012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90875748 is a wasteful number, since it uses less digits than its factorization.
90875748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 57947 (or 57945 counting only the distinct ones).
The product of its (nonzero) digits is 564480, while the sum is 48.
The square root of 90875748 is about 9532.8772151958. The cubic root of 90875748 is about 449.5893339858.
The spelling of 90875748 in words is "ninety million, eight hundred seventy-five thousand, seven hundred forty-eight".
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