Base | Representation |
---|---|
bin | 101001111010101010… |
… | …1010111010110010001 |
3 | 22121100022210022020210 |
4 | 1103311111113112101 |
5 | 2433322413130442 |
6 | 105204045354333 |
7 | 6334443655002 |
oct | 1236525272621 |
9 | 277308708223 |
10 | 90015364497 |
11 | 351a2365723 |
12 | 15541b689a9 |
13 | 86470717b6 |
14 | 44dcd7b1a9 |
15 | 251c8b419c |
hex | 14f5557591 |
90015364497 has 32 divisors (see below), whose sum is σ = 134790289920. Its totient is φ = 53099055360.
The previous prime is 90015364469. The next prime is 90015364499. The reversal of 90015364497 is 79446351009.
It is not a de Polignac number, because 90015364497 - 26 = 90015364433 is a prime.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (90015364499) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227623 + ... + 481500.
It is an arithmetic number, because the mean of its divisors is an integer number (4212196560).
Almost surely, 290015364497 is an apocalyptic number.
It is an amenable number.
90015364497 is a deficient number, since it is larger than the sum of its proper divisors (44774925423).
90015364497 is a wasteful number, since it uses less digits than its factorization.
90015364497 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 709293.
The product of its (nonzero) digits is 816480, while the sum is 48.
The spelling of 90015364497 in words is "ninety billion, fifteen million, three hundred sixty-four thousand, four hundred ninety-seven".
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