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310192013 = 1719979137
BaseRepresentation
bin10010011111010…
…010011110001101
3210121200101110002
4102133102132031
51113402121023
650440254045
710454405615
oct2237223615
9717611402
10310192013
1114a10593a
1287a71325
134c358b91
142d2a7a45
151c373b28
hex127d278d

310192013 has 8 divisors (see below), whose sum is σ = 328639032. Its totient is φ = 291767296.

The previous prime is 310192009. The next prime is 310192049. The reversal of 310192013 is 310291013.

It can be written as a sum of positive squares in 4 ways, for example, as 4012009 + 306180004 = 2003^2 + 17498^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 310192013 - 22 = 310192009 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 (310132013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29381 + ... + 38517.

It is an arithmetic number, because the mean of its divisors is an integer number (41079879).

Almost surely, 2310192013 is an apocalyptic number.

It is an amenable number.

310192013 is a deficient number, since it is larger than the sum of its proper divisors (18447019).

310192013 is a wasteful number, since it uses less digits than its factorization.

310192013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 310192013 is about 17612.2688203423. The cubic root of 310192013 is about 676.9296502067.

The spelling of 310192013 in words is "three hundred ten million, one hundred ninety-two thousand, thirteen".

Divisors: 1 17 1997 9137 33949 155329 18246589 310192013