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68500868 = 22139123203
BaseRepresentation
bin1000001010100…
…11110110000100
311202220012112012
410011103312010
5120014011433
610444113352
71461150662
oct405236604
9152805465
1068500868
1135737797
121ab35858
1311265377
149151c32
156031848
hex4153d84

68500868 has 12 divisors (see below), whose sum is σ = 120739920. Its totient is φ = 34003752.

The previous prime is 68500853. The next prime is 68500889. The reversal of 68500868 is 86800586.

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 3 ways as a sum of consecutive naturals, for example, 61046 + ... + 62157.

It is an arithmetic number, because the mean of its divisors is an integer number (10061660).

Almost surely, 268500868 is an apocalyptic number.

It is an amenable number.

68500868 is a deficient number, since it is larger than the sum of its proper divisors (52239052).

68500868 is a wasteful number, since it uses less digits than its factorization.

68500868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123346 (or 123344 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 68500868 is about 8276.5251162550. The cubic root of 68500868 is about 409.1652020822.

The spelling of 68500868 in words is "sixty-eight million, five hundred thousand, eight hundred sixty-eight".

Divisors: 1 2 4 139 278 556 123203 246406 492812 17125217 34250434 68500868