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68447774 = 243379039
BaseRepresentation
bin1000001010001…
…10111000011110
311202210111200202
410011012320132
5120010312044
610443023502
71460540123
oct405067036
9152714622
1068447774
113570090a
121ab0ab92
1311247155
14913a74a
156020c4e
hex4146e1e

68447774 has 8 divisors (see below), whose sum is σ = 102910080. Its totient is φ = 34144416.

The previous prime is 68447773. The next prime is 68447807. The reversal of 68447774 is 47774486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68447773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38654 + ... + 40385.

It is an arithmetic number, because the mean of its divisors is an integer number (12863760).

Almost surely, 268447774 is an apocalyptic number.

68447774 is a deficient number, since it is larger than the sum of its proper divisors (34462306).

68447774 is a wasteful number, since it uses less digits than its factorization.

68447774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79474.

The product of its digits is 1053696, while the sum is 47.

The square root of 68447774 is about 8273.3169889712. The cubic root of 68447774 is about 409.0594621454.

The spelling of 68447774 in words is "sixty-eight million, four hundred forty-seven thousand, seven hundred seventy-four".

Divisors: 1 2 433 866 79039 158078 34223887 68447774