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316028387 = 19109152597
BaseRepresentation
bin10010110101100…
…011010111100011
3211000122220110002
4102311203113203
51121400402022
651205330215
710555124363
oct2265432743
9730586402
10316028387
11152431894
1289a0696b
135062055c
142dd869a3
151cb28092
hex12d635e3

316028387 has 8 divisors (see below), whose sum is σ = 335715600. Its totient is φ = 296646624.

The previous prime is 316028357. The next prime is 316028389. The reversal of 316028387 is 783820613.

It is a happy number.

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 316028387 - 210 = 316027363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316028387.

It is not an unprimeable number, because it can be changed into a prime (316028389) 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, 74228 + ... + 78369.

It is an arithmetic number, because the mean of its divisors is an integer number (41964450).

Almost surely, 2316028387 is an apocalyptic number.

316028387 is a deficient number, since it is larger than the sum of its proper divisors (19687213).

316028387 is a wasteful number, since it uses less digits than its factorization.

316028387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152725.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 316028387 is about 17777.1872634565. The cubic root of 316028387 is about 681.1488559321.

The spelling of 316028387 in words is "three hundred sixteen million, twenty-eight thousand, three hundred eighty-seven".

Divisors: 1 19 109 2071 152597 2899343 16633073 316028387