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68125477 = 7174113963
BaseRepresentation
bin1000000111110…
…00001100100101
311202012010120211
410003320030211
5114420003402
610432055421
71455025360
oct403701445
9152163524
1068125477
1135500752
121a994571
1311163544
1490950d7
155eaa4d7
hex40f8325

68125477 has 16 divisors (see below), whose sum is σ = 84454272. Its totient is φ = 53614080.

The previous prime is 68125433. The next prime is 68125523. The reversal of 68125477 is 77452186.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68125477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68125417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2103 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (5278392).

Almost surely, 268125477 is an apocalyptic number.

It is an amenable number.

68125477 is a deficient number, since it is larger than the sum of its proper divisors (16328795).

68125477 is a wasteful number, since it uses less digits than its factorization.

68125477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14028.

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

The square root of 68125477 is about 8253.8159053858. The cubic root of 68125477 is about 408.4164117322.

The spelling of 68125477 in words is "sixty-eight million, one hundred twenty-five thousand, four hundred seventy-seven".

Divisors: 1 7 17 41 119 287 697 4879 13963 97741 237371 572483 1661597 4007381 9732211 68125477