Base | Representation |
---|---|
bin | 1010110110111… |
… | …10010011000011 |
3 | 20100101202100010 |
4 | 11123132103003 |
5 | 141304304232 |
6 | 13012200003 |
7 | 2154143610 |
oct | 533362303 |
9 | 210352303 |
10 | 91088067 |
11 | 474648a4 |
12 | 26609003 |
13 | 15b43285 |
14 | c151507 |
15 | 7ee40cc |
hex | 56de4c3 |
91088067 has 32 divisors (see below), whose sum is σ = 142165504. Its totient is φ = 50803200.
The previous prime is 91088059. The next prime is 91088111. The reversal of 91088067 is 76088019.
It is not a de Polignac number, because 91088067 - 23 = 91088059 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (91088047) 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, 270123 + ... + 270459.
It is an arithmetic number, because the mean of its divisors is an integer number (4442672).
Almost surely, 291088067 is an apocalyptic number.
91088067 is a deficient number, since it is larger than the sum of its proper divisors (51077437).
91088067 is a wasteful number, since it uses less digits than its factorization.
91088067 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 619.
The product of its (nonzero) digits is 24192, while the sum is 39.
The square root of 91088067 is about 9544.0068629481. The cubic root of 91088067 is about 449.9391967230.
The spelling of 91088067 in words is "ninety-one million, eighty-eight thousand, sixty-seven".
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