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313022345 = 5318922691
BaseRepresentation
bin10010101010000…
…101011110001001
3210211000011221012
4102222011132021
51120113203340
651021053305
710520434406
oct2252053611
9724004835
10313022345
11150769359
12889b7235
134cb0a22c
142d8032ad
151c732565
hex12a85789

313022345 has 16 divisors (see below), whose sum is σ = 392117760. Its totient is φ = 239606400.

The previous prime is 313022323. The next prime is 313022357. The reversal of 313022345 is 543220313.

It is not a de Polignac number, because 313022345 - 28 = 313022089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313022345.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2450 + ... + 25140.

It is an arithmetic number, because the mean of its divisors is an integer number (24507360).

Almost surely, 2313022345 is an apocalyptic number.

It is an amenable number.

313022345 is a deficient number, since it is larger than the sum of its proper divisors (79095415).

313022345 is a wasteful number, since it uses less digits than its factorization.

313022345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22816.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 313022345 is about 17692.4375087211. The cubic root of 313022345 is about 678.9822903394.

Adding to 313022345 its reverse (543220313), we get a palindrome (856242658).

The spelling of 313022345 in words is "three hundred thirteen million, twenty-two thousand, three hundred forty-five".

Divisors: 1 5 31 89 155 445 2759 13795 22691 113455 703421 2019499 3517105 10097495 62604469 313022345