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324530020 = 22516226501
BaseRepresentation
bin10011010101111…
…110111101100100
3211121122211111101
4103111332331210
51131034430040
652111445444
711020313443
oct2325767544
9747584441
10324530020
11157209231
1290826884
13523090c9
143115ad5a
151d75709a
hex1357ef64

324530020 has 12 divisors (see below), whose sum is σ = 681513084. Its totient is φ = 129812000.

The previous prime is 324529999. The next prime is 324530029. The reversal of 324530020 is 20035423.

It can be written as a sum of positive squares in 2 ways, for example, as 237406464 + 87123556 = 15408^2 + 9334^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 324530020.

It is not an unprimeable number, because it can be changed into a prime (324530029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8113231 + ... + 8113270.

It is an arithmetic number, because the mean of its divisors is an integer number (56792757).

Almost surely, 2324530020 is an apocalyptic number.

It is an amenable number.

324530020 is an abundant number, since it is smaller than the sum of its proper divisors (356983064).

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

324530020 is a wasteful number, since it uses less digits than its factorization.

324530020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16226510 (or 16226508 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 324530020 is about 18014.7167615813. The cubic root of 324530020 is about 687.2028609056.

Adding to 324530020 its reverse (20035423), we get a palindrome (344565443).

The spelling of 324530020 in words is "three hundred twenty-four million, five hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 16226501 32453002 64906004 81132505 162265010 324530020