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68028676 = 2241414809
BaseRepresentation
bin1000000111000…
…00100100000100
311202000012210121
410003200210010
5114403404201
610430031324
71454143222
oct403404404
9152005717
1068028676
1135444a51
121a948544
131112b471
14906bb12
155e8b9a1
hex40e0904

68028676 has 12 divisors (see below), whose sum is σ = 121954140. Its totient is φ = 33184640.

The previous prime is 68028673. The next prime is 68028677. The reversal of 68028676 is 67682086.

It can be written as a sum of positive squares in 2 ways, for example, as 7562500 + 60466176 = 2750^2 + 7776^2 .

It is not an unprimeable number, because it can be changed into a prime (68028673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207241 + ... + 207568.

It is an arithmetic number, because the mean of its divisors is an integer number (10162845).

Almost surely, 268028676 is an apocalyptic number.

It is an amenable number.

68028676 is a deficient number, since it is larger than the sum of its proper divisors (53925464).

68028676 is a wasteful number, since it uses less digits than its factorization.

68028676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414854 (or 414852 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 68028676 is about 8247.9498058608. The cubic root of 68028676 is about 408.2228773940. Note that the first 3 decimals are identical.

The spelling of 68028676 in words is "sixty-eight million, twenty-eight thousand, six hundred seventy-six".

Divisors: 1 2 4 41 82 164 414809 829618 1659236 17007169 34014338 68028676