Base | Representation |
---|---|
bin | 11100111111011111… |
… | …100010011011110111 |
3 | 2222100111121000100011 |
4 | 130333133202123313 |
5 | 1002223240100231 |
6 | 22145000001051 |
7 | 2151300442540 |
oct | 347737423367 |
9 | 88314530304 |
10 | 31130003191 |
11 | 12225091171 |
12 | 6049460187 |
13 | 2c2151c341 |
14 | 17145574c7 |
15 | c22e399b1 |
hex | 73f7e26f7 |
31130003191 has 16 divisors (see below), whose sum is σ = 35787896320. Its totient is φ = 26525244960.
The previous prime is 31130003189. The next prime is 31130003231. The reversal of 31130003191 is 19130003113.
It is a cyclic number.
It is not a de Polignac number, because 31130003191 - 21 = 31130003189 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 (31130013191) 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, 832936 + ... + 869506.
It is an arithmetic number, because the mean of its divisors is an integer number (2236743520).
Almost surely, 231130003191 is an apocalyptic number.
31130003191 is a deficient number, since it is larger than the sum of its proper divisors (4657893129).
31130003191 is a wasteful number, since it uses less digits than its factorization.
31130003191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37294.
The product of its (nonzero) digits is 243, while the sum is 22.
The spelling of 31130003191 in words is "thirty-one billion, one hundred thirty million, three thousand, one hundred ninety-one".
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