Base | Representation |
---|---|
bin | 1010110100000… |
… | …01101111011011 |
3 | 20022200111021221 |
4 | 11122001233123 |
5 | 141210141310 |
6 | 13000112511 |
7 | 2151004411 |
oct | 532015733 |
9 | 208614257 |
10 | 90708955 |
11 | 47225a87 |
12 | 26465737 |
13 | 15a3c84c |
14 | c0932b1 |
15 | 7e6bada |
hex | 5681bdb |
90708955 has 16 divisors (see below), whose sum is σ = 114297120. Its totient is φ = 69011712.
The previous prime is 90708953. The next prime is 90708967. The reversal of 90708955 is 55980709.
It is a cyclic number.
It is not a de Polignac number, because 90708955 - 21 = 90708953 is a prime.
It is a super-2 number, since 2×907089552 = 16456229034384050, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (90708953) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5047 + ... + 14383.
It is an arithmetic number, because the mean of its divisors is an integer number (7143570).
Almost surely, 290708955 is an apocalyptic number.
90708955 is a deficient number, since it is larger than the sum of its proper divisors (23588165).
90708955 is a wasteful number, since it uses less digits than its factorization.
90708955 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9438.
The product of its (nonzero) digits is 113400, while the sum is 43.
The square root of 90708955 is about 9524.1248941832. The cubic root of 90708955 is about 449.3141073529.
The spelling of 90708955 in words is "ninety million, seven hundred eight thousand, nine hundred fifty-five".
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