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68777212 = 2272984701
BaseRepresentation
bin1000001100101…
…11010011111100
311210102020121011
410012113103330
5120101332322
610454045004
71463411440
oct406272374
9153366534
1068777212
1135906379
121b049764
131133109a
1491c4820
156088677
hex41974fc

68777212 has 24 divisors (see below), whose sum is σ = 142299360. Its totient is φ = 28459200.

The previous prime is 68777179. The next prime is 68777221. The reversal of 68777212 is 21277786.

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 7 ways as a sum of consecutive naturals, for example, 41539 + ... + 43162.

It is an arithmetic number, because the mean of its divisors is an integer number (5929140).

Almost surely, 268777212 is an apocalyptic number.

It is an amenable number.

68777212 is an abundant number, since it is smaller than the sum of its proper divisors (73522148).

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

68777212 is a wasteful number, since it uses less digits than its factorization.

68777212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84741 (or 84739 counting only the distinct ones).

The product of its digits is 65856, while the sum is 40.

The square root of 68777212 is about 8293.2027588863. The cubic root of 68777212 is about 409.7146775536.

The spelling of 68777212 in words is "sixty-eight million, seven hundred seventy-seven thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 84701 169402 338804 592907 1185814 2371628 2456329 4912658 9825316 17194303 34388606 68777212