Base | Representation |
---|---|
bin | 1010110111011… |
… | …11111001001101 |
3 | 20100112102012112 |
4 | 11123233321031 |
5 | 141314111031 |
6 | 13013513405 |
7 | 2154564002 |
oct | 533577115 |
9 | 210472175 |
10 | 91160141 |
11 | 47503a66 |
12 | 26642865 |
13 | 15b6a017 |
14 | c16d8a9 |
15 | 800a62b |
hex | 56efe4d |
91160141 has 4 divisors (see below), whose sum is σ = 91221984. Its totient is φ = 91098300.
The previous prime is 91160131. The next prime is 91160161. The reversal of 91160141 is 14106119.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 91160141 - 26 = 91160077 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (91160131) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28655 + ... + 31676.
It is an arithmetic number, because the mean of its divisors is an integer number (22805496).
Almost surely, 291160141 is an apocalyptic number.
It is an amenable number.
91160141 is a deficient number, since it is larger than the sum of its proper divisors (61843).
91160141 is a wasteful number, since it uses less digits than its factorization.
91160141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61842.
The product of its (nonzero) digits is 216, while the sum is 23.
The square root of 91160141 is about 9547.7819937407. The cubic root of 91160141 is about 450.0578378334.
The spelling of 91160141 in words is "ninety-one million, one hundred sixty thousand, one hundred forty-one".
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