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68154772 = 2272434099
BaseRepresentation
bin1000000111111…
…11010110010100
311202020121202211
410003333112110
5114421423042
610432443204
71455206650
oct403772624
9152217684
1068154772
1135520764
121a9a9504
131117398a
1490a1a60
155eb4017
hex40ff594

68154772 has 12 divisors (see below), whose sum is σ = 136309600. Its totient is φ = 29209176.

The previous prime is 68154761. The next prime is 68154829. The reversal of 68154772 is 27745186.

68154772 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1217022 + ... + 1217077.

Almost surely, 268154772 is an apocalyptic number.

It is an amenable number.

68154772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68154772 is a wasteful number, since it uses less digits than its factorization.

68154772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434110 (or 2434108 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 68154772 is about 8255.5903483639. The cubic root of 68154772 is about 408.4749451166.

The spelling of 68154772 in words is "sixty-eight million, one hundred fifty-four thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 2434099 4868198 9736396 17038693 34077386 68154772