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315008030 = 25191657937
BaseRepresentation
bin10010110001101…
…010010000011110
3210221202001210002
4102301222100132
51121120224110
651131414302
710543344521
oct2261522036
9727661702
10315008030
111518a5217
12895b4392
1350353cac
142db9cbb8
151c9c5aa5
hex12c6a41e

315008030 has 16 divisors (see below), whose sum is σ = 596857680. Its totient is φ = 119371392.

The previous prime is 315008017. The next prime is 315008033. The reversal of 315008030 is 30800513.

It is a junction number, because it is equal to n+sod(n) for n = 315007993 and 315008011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315008033) by changing a digit.

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, 828779 + ... + 829158.

It is an arithmetic number, because the mean of its divisors is an integer number (37303605).

Almost surely, 2315008030 is an apocalyptic number.

315008030 is a deficient number, since it is larger than the sum of its proper divisors (281849650).

315008030 is a wasteful number, since it uses less digits than its factorization.

315008030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657963.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 315008030 is about 17748.4655674793. The cubic root of 315008030 is about 680.4149932245.

Adding to 315008030 its reverse (30800513), we get a palindrome (345808543).

The spelling of 315008030 in words is "three hundred fifteen million, eight thousand, thirty".

Divisors: 1 2 5 10 19 38 95 190 1657937 3315874 8289685 16579370 31500803 63001606 157504015 315008030