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315394428 = 22326282869
BaseRepresentation
bin10010110011001…
…000100101111100
3210222110200211010
4102303020211330
51121220110203
651143555220
710546544166
oct2263104574
9728420733
10315394428
11152039558
128975bb10
135045ab2b
142dc5d936
151ca50303
hex12cc897c

315394428 has 12 divisors (see below), whose sum is σ = 735920360. Its totient is φ = 105131472.

The previous prime is 315394411. The next prime is 315394451. The reversal of 315394428 is 824493513.

315394428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13141423 + ... + 13141446.

Almost surely, 2315394428 is an apocalyptic number.

It is an amenable number.

315394428 is an abundant number, since it is smaller than the sum of its proper divisors (420525932).

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

315394428 is a wasteful number, since it uses less digits than its factorization.

315394428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26282876 (or 26282874 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 315394428 is about 17759.3476231533. The cubic root of 315394428 is about 680.6930851487.

The spelling of 315394428 in words is "three hundred fifteen million, three hundred ninety-four thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 26282869 52565738 78848607 105131476 157697214 315394428