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315224340 = 22355253739
BaseRepresentation
bin10010110010011…
…111000100010100
3210222011001111120
4102302133010110
51121144134330
651140203540
710545235254
oct2262370424
9728131446
10315224340
11151a32792
12896995b0
13503cb5a2
142dc17964
151ca19c10
hex12c9f114

315224340 has 24 divisors (see below), whose sum is σ = 882628320. Its totient is φ = 84059808.

The previous prime is 315224323. The next prime is 315224341. The reversal of 315224340 is 43422513.

It is a self number, because there is not a number n which added to its sum of digits gives 315224340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315224341) 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, 2626810 + ... + 2626929.

It is an arithmetic number, because the mean of its divisors is an integer number (36776180).

Almost surely, 2315224340 is an apocalyptic number.

315224340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315224340 is an abundant number, since it is smaller than the sum of its proper divisors (567403980).

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

315224340 is a wasteful number, since it uses less digits than its factorization.

315224340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253751 (or 5253749 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 315224340 is about 17754.5582879440. The cubic root of 315224340 is about 680.5707002513.

Adding to 315224340 its reverse (43422513), we get a palindrome (358646853).

The spelling of 315224340 in words is "three hundred fifteen million, two hundred twenty-four thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 5253739 10507478 15761217 21014956 26268695 31522434 52537390 63044868 78806085 105074780 157612170 315224340