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315442052 = 22731080281
BaseRepresentation
bin10010110011010…
…100001110000100
3210222120010010222
4102303110032010
51121223121202
651145003512
710550133062
oct2263241604
9728503128
10315442052
11152071312
1289783598
1350476703
142dc73032
151ca5e4a2
hex12cd4384

315442052 has 12 divisors (see below), whose sum is σ = 559586076. Its totient is φ = 155560320.

The previous prime is 315442027. The next prime is 315442063. The reversal of 315442052 is 250244513.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62504836 + 252937216 = 7906^2 + 15904^2 .

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, 539849 + ... + 540432.

It is an arithmetic number, because the mean of its divisors is an integer number (46632173).

Almost surely, 2315442052 is an apocalyptic number.

It is an amenable number.

315442052 is a deficient number, since it is larger than the sum of its proper divisors (244144024).

315442052 is a wasteful number, since it uses less digits than its factorization.

315442052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080358 (or 1080356 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 315442052 is about 17760.6883875598. The cubic root of 315442052 is about 680.7273445745.

Adding to 315442052 its reverse (250244513), we get a palindrome (565686565).

The spelling of 315442052 in words is "three hundred fifteen million, four hundred forty-two thousand, fifty-two".

Divisors: 1 2 4 73 146 292 1080281 2160562 4321124 78860513 157721026 315442052