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315394274 = 21330413989
BaseRepresentation
bin10010110011001…
…000100011100010
3210222110200121102
4102303020203202
51121220104044
651143554402
710546543556
oct2263104342
9728420542
10315394274
11152039428
128975ba02
135045aa40
142dc5d866
151ca5024e
hex12cc88e2

315394274 has 16 divisors (see below), whose sum is σ = 509778360. Its totient is φ = 145482240.

The previous prime is 315394267. The next prime is 315394309. The reversal of 315394274 is 472493513.

It can be written as a sum of positive squares in 4 ways, for example, as 290941249 + 24453025 = 17057^2 + 4945^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77072 + ... + 81060.

Almost surely, 2315394274 is an apocalyptic number.

315394274 is a deficient number, since it is larger than the sum of its proper divisors (194384086).

315394274 is a wasteful number, since it uses less digits than its factorization.

315394274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7045.

The product of its digits is 90720, while the sum is 38.

The square root of 315394274 is about 17759.3432874079. The cubic root of 315394274 is about 680.6929743597.

The spelling of 315394274 in words is "three hundred fifteen million, three hundred ninety-four thousand, two hundred seventy-four".

Divisors: 1 2 13 26 3041 3989 6082 7978 39533 51857 79066 103714 12130549 24261098 157697137 315394274