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316393386 = 23101951749
BaseRepresentation
bin10010110110111…
…100011110101010
3211001100110010120
4102312330132222
51121444042021
651221224110
710561204461
oct2266743652
9731313116
10316393386
11152661041
1289b62036
135071a72a
143003d9d8
151cb9b2c6
hex12dbc7aa

316393386 has 16 divisors (see below), whose sum is σ = 633420000. Its totient is φ = 105358928.

The previous prime is 316393381. The next prime is 316393387. The reversal of 316393386 is 683393613.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (316393381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19761 + ... + 31988.

It is an arithmetic number, because the mean of its divisors is an integer number (39588750).

Almost surely, 2316393386 is an apocalyptic number.

316393386 is an abundant number, since it is smaller than the sum of its proper divisors (317026614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316393386 is a wasteful number, since it uses less digits than its factorization.

316393386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52773.

The product of its digits is 209952, while the sum is 42.

The square root of 316393386 is about 17787.4502388622. The cubic root of 316393386 is about 681.4109874454.

The spelling of 316393386 in words is "three hundred sixteen million, three hundred ninety-three thousand, three hundred eighty-six".

Divisors: 1 2 3 6 1019 2038 3057 6114 51749 103498 155247 310494 52732231 105464462 158196693 316393386