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315335138 = 2277569197
BaseRepresentation
bin10010110010111…
…010000111100010
3210222100200111012
4102302322013202
51121211211023
651142420522
710546206266
oct2262720742
9728320435
10315335138
11151aa8a58
1289731742
1350439b51
142dc460a6
151ca3c978
hex12cba1e2

315335138 has 8 divisors (see below), whose sum is σ = 474711132. Its totient is φ = 157098096.

The previous prime is 315335113. The next prime is 315335149. The reversal of 315335138 is 831533513.

315335138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 295736809 + 19598329 = 17197^2 + 4427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 284045 + ... + 285152.

Almost surely, 2315335138 is an apocalyptic number.

315335138 is a deficient number, since it is larger than the sum of its proper divisors (159375994).

315335138 is a wasteful number, since it uses less digits than its factorization.

315335138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569476.

The product of its digits is 16200, while the sum is 32.

The square root of 315335138 is about 17757.6782829288. The cubic root of 315335138 is about 680.6504286963.

The spelling of 315335138 in words is "three hundred fifteen million, three hundred thirty-five thousand, one hundred thirty-eight".

Divisors: 1 2 277 554 569197 1138394 157667569 315335138