Base | Representation |
---|---|
bin | 101010010101010101… |
… | …0100011010011001100 |
3 | 22200122200102010121100 |
4 | 1110222222203103030 |
5 | 2442140442022144 |
6 | 105432531103100 |
7 | 6365560123113 |
oct | 1245252432314 |
9 | 280580363540 |
10 | 90910110924 |
11 | 35611429986 |
12 | 15751741a90 |
13 | 875a548b59 |
14 | 4585b2ac7a |
15 | 2571204269 |
hex | 152aaa34cc |
90910110924 has 36 divisors (see below), whose sum is σ = 231477947064. Its totient is φ = 30082176192.
The previous prime is 90910110917. The next prime is 90910110931. The reversal of 90910110924 is 42901101909.
It is an interprime number because it is at equal distance from previous prime (90910110917) and next prime (90910110931).
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9211422 + ... + 9221285.
It is an arithmetic number, because the mean of its divisors is an integer number (6429942974).
Almost surely, 290910110924 is an apocalyptic number.
It is an amenable number.
90910110924 is an abundant number, since it is smaller than the sum of its proper divisors (140567836140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90910110924 is a wasteful number, since it uses less digits than its factorization.
90910110924 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18432854 (or 18432849 counting only the distinct ones).
The product of its (nonzero) digits is 5832, while the sum is 36.
The spelling of 90910110924 in words is "ninety billion, nine hundred ten million, one hundred ten thousand, nine hundred twenty-four".
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