Search a number
-
+
315228317 = 23173227349
BaseRepresentation
bin10010110010100…
…000000010011101
3210222011020221212
4102302200002131
51121144301232
651140234205
710545252665
oct2262400235
9728136855
10315228317
11151a35778
128969b965
1350400341
142dc191a5
151ca1aeb2
hex12ca009d

315228317 has 16 divisors (see below), whose sum is σ = 333244800. Its totient is φ = 297604032.

The previous prime is 315228311. The next prime is 315228337. The reversal of 315228317 is 713822513.

It is a cyclic number.

It is not a de Polignac number, because 315228317 - 24 = 315228301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315228311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903059 + ... + 903407.

It is an arithmetic number, because the mean of its divisors is an integer number (20827800).

Almost surely, 2315228317 is an apocalyptic number.

It is an amenable number.

315228317 is a deficient number, since it is larger than the sum of its proper divisors (18016483).

315228317 is a wasteful number, since it uses less digits than its factorization.

315228317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772.

The product of its digits is 10080, while the sum is 32.

The square root of 315228317 is about 17754.6702869977. The cubic root of 315228317 is about 680.5735623593.

The spelling of 315228317 in words is "three hundred fifteen million, two hundred twenty-eight thousand, three hundred seventeen".

Divisors: 1 23 173 227 349 3979 5221 8027 39271 60377 79223 903233 1388671 1822129 13705579 315228317