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315480812 = 22791915227
BaseRepresentation
bin10010110011011…
…101101011101100
3210222122002022112
4102303131223230
51121230341222
651145503152
710550354063
oct2263355354
9728562275
10315480812
11152098449
12897a1ab8
135048b24a
142dc831da
151ca6abe2
hex12cddaec

315480812 has 24 divisors (see below), whose sum is σ = 562114560. Its totient is φ = 154898640.

The previous prime is 315480797. The next prime is 315480817. The reversal of 315480812 is 218084513.

It is not an unprimeable number, because it can be changed into a prime (315480817) by changing a digit.

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, 57743 + ... + 62969.

It is an arithmetic number, because the mean of its divisors is an integer number (23421440).

Almost surely, 2315480812 is an apocalyptic number.

It is an amenable number.

315480812 is a deficient number, since it is larger than the sum of its proper divisors (246633748).

315480812 is a wasteful number, since it uses less digits than its factorization.

315480812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5501 (or 5499 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 315480812 is about 17761.7795279640. The cubic root of 315480812 is about 680.7552249317.

The spelling of 315480812 in words is "three hundred fifteen million, four hundred eighty thousand, eight hundred twelve".

Divisors: 1 2 4 79 158 191 316 382 764 5227 10454 15089 20908 30178 60356 412933 825866 998357 1651732 1996714 3993428 78870203 157740406 315480812