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68304822 = 2379144103
BaseRepresentation
bin1000001001000…
…11111110110110
311202112020121020
410010203332312
5114441223242
610440002010
71456403265
oct404437666
9152466536
1068304822
1135613473
121aa60306
13111c7071
1491005dc
155ee36ec
hex4123fb6

68304822 has 16 divisors (see below), whose sum is σ = 138339840. Its totient is φ = 22479912.

The previous prime is 68304809. The next prime is 68304833. The reversal of 68304822 is 22840386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71578 + ... + 72525.

It is an arithmetic number, because the mean of its divisors is an integer number (8646240).

Almost surely, 268304822 is an apocalyptic number.

68304822 is an abundant number, since it is smaller than the sum of its proper divisors (70035018).

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

68304822 is a wasteful number, since it uses less digits than its factorization.

68304822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144187.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 68304822 is about 8264.6731332824. The cubic root of 68304822 is about 408.7744924489.

The spelling of 68304822 in words is "sixty-eight million, three hundred four thousand, eight hundred twenty-two".

Divisors: 1 2 3 6 79 158 237 474 144103 288206 432309 864618 11384137 22768274 34152411 68304822