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213353524520 = 2356874377591
BaseRepresentation
bin1100011010110011011…
…1000110110100101000
3202101200222022000102122
43012230313012310220
511443422000241040
6242002510250412
721262046015243
oct3065467066450
9671628260378
10213353524520
1182534558884
12354237b6a08
1317171a0c386
14a47d79425a
15583a9591b5
hex31acdc6d28

213353524520 has 32 divisors (see below), whose sum is σ = 480058600320. Its totient is φ = 85339068480.

The previous prime is 213353524519. The next prime is 213353524537. The reversal of 213353524520 is 25425353312.

213353524520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2710925 + ... + 2788515.

It is an arithmetic number, because the mean of its divisors is an integer number (15001831260).

Almost surely, 2213353524520 is an apocalyptic number.

213353524520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213353524520 is an abundant number, since it is smaller than the sum of its proper divisors (266705075800).

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

213353524520 is a wasteful number, since it uses less digits than its factorization.

213353524520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146345 (or 146341 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 213353524520 its reverse (25425353312), we get a palindrome (238778877832).

The spelling of 213353524520 in words is "two hundred thirteen billion, three hundred fifty-three million, five hundred twenty-four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 68743 77591 137486 155182 274972 310364 343715 387955 549944 620728 687430 775910 1374860 1551820 2749720 3103640 5333838113 10667676226 21335352452 26669190565 42670704904 53338381130 106676762260 213353524520