Search a number
-
+
316049087 = 2411311407
BaseRepresentation
bin10010110101101…
…000011010111111
3211000200221211202
4102311220122333
51121402032322
651210010115
710555241624
oct2265503277
9730627752
10316049087
111524463a2
1289a1693b
1350629ac3
142dd9034b
151cb2e292
hex12d686bf

316049087 has 4 divisors (see below), whose sum is σ = 317360736. Its totient is φ = 314737440.

The previous prime is 316049081. The next prime is 316049089. The reversal of 316049087 is 780940613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780940613 = 2327933547.

It is a cyclic number.

It is not a de Polignac number, because 316049087 - 224 = 299271871 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 316049087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316049081) 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, 655463 + ... + 655944.

It is an arithmetic number, because the mean of its divisors is an integer number (79340184).

Almost surely, 2316049087 is an apocalyptic number.

316049087 is a deficient number, since it is larger than the sum of its proper divisors (1311649).

316049087 is a wasteful number, since it uses less digits than its factorization.

316049087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311648.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 316049087 is about 17777.7694607619. The cubic root of 316049087 is about 681.1637274584.

The spelling of 316049087 in words is "three hundred sixteen million, forty-nine thousand, eighty-seven".

Divisors: 1 241 1311407 316049087