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310686013 = 113233423
BaseRepresentation
bin10010100001001…
…011000100111101
3210122121111002101
4102201023010331
51114013423023
650455025101
710461534061
oct2241130475
9718544071
10310686013
1114a413000
128806b191
134c49c9a1
142d395aa1
151c4201ad
hex1284b13d

310686013 has 8 divisors (see below), whose sum is σ = 341732736. Its totient is φ = 282440620.

The previous prime is 310685983. The next prime is 310686037.

310686013 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 310686013 - 217 = 310554941 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 (310686083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115381 + ... + 118042.

It is an arithmetic number, because the mean of its divisors is an integer number (42716592).

Almost surely, 2310686013 is an apocalyptic number.

It is an amenable number.

310686013 is a deficient number, since it is larger than the sum of its proper divisors (31046723).

310686013 is an equidigital number, since it uses as much as digits as its factorization.

310686013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233456 (or 233434 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 310686013 is about 17626.2875558071. The cubic root of 310686013 is about 677.2888104158.

The spelling of 310686013 in words is "three hundred ten million, six hundred eighty-six thousand, thirteen".

Divisors: 1 11 121 1331 233423 2567653 28244183 310686013