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68471724 = 2235705977
BaseRepresentation
bin1000001010011…
…00101110101100
311202211201112210
410011030232230
5120012043344
610443330420
71461000006
oct405145654
9152751483
1068471724
1135717902
121ab20a10
1311255019
149145376
156027db9
hex414cbac

68471724 has 12 divisors (see below), whose sum is σ = 159767384. Its totient is φ = 22823904.

The previous prime is 68471657. The next prime is 68471731. The reversal of 68471724 is 42717486.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2852977 + ... + 2853000.

Almost surely, 268471724 is an apocalyptic number.

It is an amenable number.

68471724 is an abundant number, since it is smaller than the sum of its proper divisors (91295660).

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

68471724 is a wasteful number, since it uses less digits than its factorization.

68471724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5705984 (or 5705982 counting only the distinct ones).

The product of its digits is 75264, while the sum is 39.

The square root of 68471724 is about 8274.7642866731. The cubic root of 68471724 is about 409.1071667972.

The spelling of 68471724 in words is "sixty-eight million, four hundred seventy-one thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 12 5705977 11411954 17117931 22823908 34235862 68471724