Base | Representation |
---|---|
bin | 10010101010110… |
… | …001010110101011 |
3 | 210211100022111110 |
4 | 102222301112223 |
5 | 1120134431331 |
6 | 51025001403 |
7 | 10522113426 |
oct | 2252612653 |
9 | 724308443 |
10 | 313202091 |
11 | 150881404 |
12 | 88a83263 |
13 | 4cb70ca7 |
14 | 2d84c9bd |
15 | 1c76a946 |
hex | 12ab15ab |
313202091 has 16 divisors (see below), whose sum is σ = 423521280. Its totient is φ = 205860480.
The previous prime is 313202089. The next prime is 313202107. The reversal of 313202091 is 190202313.
It is a happy number.
It is not a de Polignac number, because 313202091 - 21 = 313202089 is a prime.
It is not an unprimeable number, because it can be changed into a prime (313202041) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71731 + ... + 75971.
It is an arithmetic number, because the mean of its divisors is an integer number (26470080).
Almost surely, 2313202091 is an apocalyptic number.
313202091 is a deficient number, since it is larger than the sum of its proper divisors (110319189).
313202091 is a wasteful number, since it uses less digits than its factorization.
313202091 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4586.
The product of its (nonzero) digits is 324, while the sum is 21.
The square root of 313202091 is about 17697.5165206873. The cubic root of 313202091 is about 679.1122288776.
It can be divided in two parts, 31320 and 2091, that added together give a triangular number (33411 = T258).
The spelling of 313202091 in words is "three hundred thirteen million, two hundred two thousand, ninety-one".
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