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316308380 = 22515815419
BaseRepresentation
bin10010110110100…
…111101110011100
3211001012010112012
4102312213232130
51121433332010
651215330352
710560401603
oct2266475634
9731163465
10316308380
11152603193
1289b209b8
13506bab2b
143001aa3a
151cb81005
hex12da7b9c

316308380 has 12 divisors (see below), whose sum is σ = 664247640. Its totient is φ = 126523344.

The previous prime is 316308361. The next prime is 316308389. The reversal of 316308380 is 83803613.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316308389) 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 3 ways as a sum of consecutive naturals, for example, 7907690 + ... + 7907729.

It is an arithmetic number, because the mean of its divisors is an integer number (55353970).

Almost surely, 2316308380 is an apocalyptic number.

It is an amenable number.

316308380 is an abundant number, since it is smaller than the sum of its proper divisors (347939260).

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

316308380 is a wasteful number, since it uses less digits than its factorization.

316308380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15815428 (or 15815426 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 316308380 is about 17785.0605846592. The cubic root of 316308380 is about 681.3499566599.

The spelling of 316308380 in words is "three hundred sixteen million, three hundred eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 15815419 31630838 63261676 79077095 158154190 316308380