Base | Representation |
---|---|
bin | 1010110101011… |
… | …10011111000111 |
3 | 20100000210200221 |
4 | 11122232133013 |
5 | 141232022411 |
6 | 13004045211 |
7 | 2152366633 |
oct | 532563707 |
9 | 210023627 |
10 | 90892231 |
11 | 47340751 |
12 | 26533807 |
13 | 15aa50b1 |
14 | c0dddc3 |
15 | 7ea6071 |
hex | 56ae7c7 |
90892231 has 4 divisors (see below), whose sum is σ = 90922552. Its totient is φ = 90861912.
The previous prime is 90892213. The next prime is 90892237. The reversal of 90892231 is 13229809.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 90892231 - 25 = 90892199 is a prime.
It is a super-2 number, since 2×908922312 = 16522795312314722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (90892237) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 10101 + ... + 16846.
It is an arithmetic number, because the mean of its divisors is an integer number (22730638).
Almost surely, 290892231 is an apocalyptic number.
90892231 is a deficient number, since it is larger than the sum of its proper divisors (30321).
90892231 is a wasteful number, since it uses less digits than its factorization.
90892231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30320.
The product of its (nonzero) digits is 7776, while the sum is 34.
The square root of 90892231 is about 9533.7417103674. The cubic root of 90892231 is about 449.6165144425.
It can be divided in two parts, 908 and 92231, that added together give a palindrome (93139).
The spelling of 90892231 in words is "ninety million, eight hundred ninety-two thousand, two hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.122 sec. • engine limits •