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315213106 = 21344327367
BaseRepresentation
bin10010110010011…
…100010100110010
3210222010111002111
4102302130110302
51121143304411
651140035534
710545160435
oct2262342462
9728114074
10315213106
11151a252aa
1289692baa
13503c6440
142dc1381c
151ca16721
hex12c9c532

315213106 has 16 divisors (see below), whose sum is σ = 510358464. Its totient is φ = 145149264.

The previous prime is 315213089. The next prime is 315213113. The reversal of 315213106 is 601312513.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2166 + ... + 25201.

It is an arithmetic number, because the mean of its divisors is an integer number (31897404).

Almost surely, 2315213106 is an apocalyptic number.

315213106 is a deficient number, since it is larger than the sum of its proper divisors (195145358).

315213106 is a wasteful number, since it uses less digits than its factorization.

315213106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27825.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 315213106 is about 17754.2419156662. The cubic root of 315213106 is about 680.5626154039.

Adding to 315213106 its reverse (601312513), we get a palindrome (916525619).

The spelling of 315213106 in words is "three hundred fifteen million, two hundred thirteen thousand, one hundred six".

Divisors: 1 2 13 26 443 886 5759 11518 27367 54734 355771 711542 12123581 24247162 157606553 315213106