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68104536 = 2338113499
BaseRepresentation
bin1000000111100…
…11000101011000
311202011001212020
410003303011120
5114413321121
610431414440
71454610333
oct403630530
9152131766
1068104536
1135496a45
121a984420
1311156b56
14908b61a
155ea41c6
hex40f3158

68104536 has 32 divisors (see below), whose sum is σ = 170520000. Its totient is φ = 22667040.

The previous prime is 68104513. The next prime is 68104577. The reversal of 68104536 is 63540186.

It is a junction number, because it is equal to n+sod(n) for n = 68104497 and 68104506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17715 + ... + 21213.

It is an arithmetic number, because the mean of its divisors is an integer number (5328750).

Almost surely, 268104536 is an apocalyptic number.

It is an amenable number.

68104536 is an abundant number, since it is smaller than the sum of its proper divisors (102415464).

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

68104536 is a wasteful number, since it uses less digits than its factorization.

68104536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319 (or 4315 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 68104536 is about 8252.5472431244. The cubic root of 68104536 is about 408.3745599173.

The spelling of 68104536 in words is "sixty-eight million, one hundred four thousand, five hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 24 811 1622 2433 3244 3499 4866 6488 6998 9732 10497 13996 19464 20994 27992 41988 83976 2837689 5675378 8513067 11350756 17026134 22701512 34052268 68104536