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315031132 = 221334917359
BaseRepresentation
bin10010110001101…
…111111001011100
3210221210020110201
4102301233321130
51121121444012
651132113244
710543502053
oct2261577134
9727706421
10315031132
11151910609
1289605824
1350361670
142dba739a
151c9cc857
hex12c6fe5c

315031132 has 24 divisors (see below), whose sum is σ = 595448000. Its totient is φ = 144974016.

The previous prime is 315031117. The next prime is 315031169. The reversal of 315031132 is 231130513.

315031132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3150311322 = 198489228258402848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9469 + ... + 26827.

Almost surely, 2315031132 is an apocalyptic number.

It is an amenable number.

315031132 is a deficient number, since it is larger than the sum of its proper divisors (280416868).

315031132 is a wasteful number, since it uses less digits than its factorization.

315031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17725 (or 17723 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 315031132 is about 17749.1163723719. The cubic root of 315031132 is about 680.4316262004.

Adding to 315031132 its reverse (231130513), we get a palindrome (546161645).

The spelling of 315031132 in words is "three hundred fifteen million, thirty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 13 26 52 349 698 1396 4537 9074 17359 18148 34718 69436 225667 451334 902668 6058291 12116582 24233164 78757783 157515566 315031132