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315304530 = 23529362419
BaseRepresentation
bin10010110010110…
…010101001010010
3210222022010111120
4102302302221102
51121204221110
651142023110
710546021122
oct2262625122
9728263446
10315304530
11151a87a62
1289717a96
1350428c38
142dc38c82
151ca33870
hex12cb2a52

315304530 has 32 divisors (see below), whose sum is σ = 782827200. Its totient is φ = 81181632.

The previous prime is 315304523. The next prime is 315304531. The reversal of 315304530 is 35403513.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 315304530.

It is not an unprimeable number, because it can be changed into a prime (315304531) 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 15 ways as a sum of consecutive naturals, for example, 180340 + ... + 182079.

It is an arithmetic number, because the mean of its divisors is an integer number (24463350).

Almost surely, 2315304530 is an apocalyptic number.

315304530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

315304530 is an abundant number, since it is smaller than the sum of its proper divisors (467522670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315304530 is a wasteful number, since it uses less digits than its factorization.

315304530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362458.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 315304530 is about 17756.8164376388. The cubic root of 315304530 is about 680.6284055429.

The spelling of 315304530 in words is "three hundred fifteen million, three hundred four thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 174 290 435 870 362419 724838 1087257 1812095 2174514 3624190 5436285 10510151 10872570 21020302 31530453 52550755 63060906 105101510 157652265 315304530