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68774967 = 3310923369
BaseRepresentation
bin1000001100101…
…10110000110111
311210102010112000
410012112300313
5120101244332
610454030343
71463402052
oct406266067
9153363460
1068774967
1135904718
121b0483b3
1311330061
1491c3a99
156087b7c
hex4196c37

68774967 has 16 divisors (see below), whose sum is σ = 102828000. Its totient is φ = 45427392.

The previous prime is 68774947. The next prime is 68774977. The reversal of 68774967 is 76947786.

It is not a de Polignac number, because 68774967 - 28 = 68774711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68774947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8742 + ... + 14627.

It is an arithmetic number, because the mean of its divisors is an integer number (6426750).

Almost surely, 268774967 is an apocalyptic number.

68774967 is a deficient number, since it is larger than the sum of its proper divisors (34053033).

68774967 is a wasteful number, since it uses less digits than its factorization.

68774967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23487 (or 23481 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 68774967 is about 8293.0674059723. The cubic root of 68774967 is about 409.7102195874.

The spelling of 68774967 in words is "sixty-eight million, seven hundred seventy-four thousand, nine hundred sixty-seven".

Divisors: 1 3 9 27 109 327 981 2943 23369 70107 210321 630963 2547221 7641663 22924989 68774967