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213541484672 = 277921117631
BaseRepresentation
bin1100011011100000010…
…0000111100010000000
3202102012001222101021202
43012320010013202000
511444313110002142
6242033303040332
721266520446105
oct3067004074200
9672161871252
10213541484672
118262066804a
12354767400a8
13171a193c4b9
14a49a720aac
15584c1d6032
hex31b8107880

213541484672 has 32 divisors (see below), whose sum is σ = 430799692800. Its totient is φ = 105419208960.

The previous prime is 213541484599. The next prime is 213541484707. The reversal of 213541484672 is 276484145312.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 10548704 + ... + 10568927.

It is an arithmetic number, because the mean of its divisors is an integer number (13462490400).

Almost surely, 2213541484672 is an apocalyptic number.

It is an amenable number.

213541484672 is an abundant number, since it is smaller than the sum of its proper divisors (217258208128).

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

213541484672 is an equidigital number, since it uses as much as digits as its factorization.

213541484672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21117724 (or 21117712 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 47.

The spelling of 213541484672 in words is "two hundred thirteen billion, five hundred forty-one million, four hundred eighty-four thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 79 128 158 316 632 1264 2528 5056 10112 21117631 42235262 84470524 168941048 337882096 675764192 1351528384 1668292849 2703056768 3336585698 6673171396 13346342792 26692685584 53385371168 106770742336 213541484672