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324224420 = 225131247017
BaseRepresentation
bin10011010100110…
…100010110100100
3211121002022021212
4103110310112210
51131000140140
652101130552
711014601462
oct2324642644
9747068255
10324224420
1115701a673
12906b9a58
135222cc90
14310bb832
151d6e6765
hex135345a4

324224420 has 24 divisors (see below), whose sum is σ = 733246584. Its totient is φ = 119713536.

The previous prime is 324224413. The next prime is 324224431. The reversal of 324224420 is 24422423.

It can be written as a sum of positive squares in 4 ways, for example, as 14182756 + 310041664 = 3766^2 + 17608^2 .

It is an unprimeable number.

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, 623249 + ... + 623768.

It is an arithmetic number, because the mean of its divisors is an integer number (30551941).

Almost surely, 2324224420 is an apocalyptic number.

It is an amenable number.

324224420 is an abundant number, since it is smaller than the sum of its proper divisors (409022164).

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

324224420 is a wasteful number, since it uses less digits than its factorization.

324224420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247039 (or 1247037 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 324224420 is about 18006.2328097801. The cubic root of 324224420 is about 686.9870871861.

Adding to 324224420 its reverse (24422423), we get a palindrome (348646843).

The spelling of 324224420 in words is "three hundred twenty-four million, two hundred twenty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1247017 2494034 4988068 6235085 12470170 16211221 24940340 32422442 64844884 81056105 162112210 324224420