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313245307 = 397789031
BaseRepresentation
bin10010101010111…
…011111001111011
3210211102111210001
4102222323321323
51120142322212
651025533431
710522353424
oct2252737173
9724374701
10313245307
11150900921
1288aa4277
134cb8786b
142d86064b
151c778657
hex12abbe7b

313245307 has 4 divisors (see below), whose sum is σ = 314034736. Its totient is φ = 312455880.

The previous prime is 313245287. The next prime is 313245313. The reversal of 313245307 is 703542313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313245307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313245007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394119 + ... + 394912.

It is an arithmetic number, because the mean of its divisors is an integer number (78508684).

Almost surely, 2313245307 is an apocalyptic number.

313245307 is a deficient number, since it is larger than the sum of its proper divisors (789429).

313245307 is an equidigital number, since it uses as much as digits as its factorization.

313245307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789428.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 313245307 is about 17698.7374408459. The cubic root of 313245307 is about 679.1434623476.

The spelling of 313245307 in words is "three hundred thirteen million, two hundred forty-five thousand, three hundred seven".

Divisors: 1 397 789031 313245307