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68206792 = 238525849
BaseRepresentation
bin1000001000011…
…00000011001000
311202100021010111
410010030003020
5114430104132
610433524104
71455514423
oct404140310
9152307114
1068206792
1135556855
121aa13634
1311191564
1490b69ba
155ec4647
hex410c0c8

68206792 has 8 divisors (see below), whose sum is σ = 127887750. Its totient is φ = 34103392.

The previous prime is 68206777. The next prime is 68206843. The reversal of 68206792 is 29760286.

It can be written as a sum of positive squares in only one way, i.e., 53963716 + 14243076 = 7346^2 + 3774^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4262917 + ... + 4262932.

Almost surely, 268206792 is an apocalyptic number.

It is an amenable number.

68206792 is a deficient number, since it is larger than the sum of its proper divisors (59680958).

68206792 is a wasteful number, since it uses less digits than its factorization.

68206792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8525855 (or 8525851 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 68206792 is about 8258.7403397855. The cubic root of 68206792 is about 408.5788432598.

The spelling of 68206792 in words is "sixty-eight million, two hundred six thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 8525849 17051698 34103396 68206792