Base | Representation |
---|---|
bin | 1010110110111… |
… | …01000101011101 |
3 | 20100101111112012 |
4 | 11123131011131 |
5 | 141304124401 |
6 | 13012121005 |
7 | 2154123254 |
oct | 533350535 |
9 | 210344465 |
10 | 91083101 |
11 | 4746109a |
12 | 26606165 |
13 | 15b40c35 |
14 | c14d79b |
15 | 7ee28bb |
hex | 56dd15d |
91083101 has 2 divisors, whose sum is σ = 91083102. Its totient is φ = 91083100.
The previous prime is 91083089. The next prime is 91083107. The reversal of 91083101 is 10138019.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 76983076 + 14100025 = 8774^2 + 3755^2 .
It is a cyclic number.
It is not a de Polignac number, because 91083101 - 26 = 91083037 is a prime.
It is a super-2 number, since 2×910831012 = 16592262575552402, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (91083107) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45541550 + 45541551.
It is an arithmetic number, because the mean of its divisors is an integer number (45541551).
Almost surely, 291083101 is an apocalyptic number.
It is an amenable number.
91083101 is a deficient number, since it is larger than the sum of its proper divisors (1).
91083101 is an equidigital number, since it uses as much as digits as its factorization.
91083101 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 216, while the sum is 23.
The square root of 91083101 is about 9543.7466961356. The cubic root of 91083101 is about 449.9310198793.
The spelling of 91083101 in words is "ninety-one million, eighty-three thousand, one hundred one".
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