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68475429 = 3311307751
BaseRepresentation
bin1000001010011…
…01101000100101
311202211220122000
410011031220211
5120012203204
610443355513
71461013551
oct405155045
9152756560
1068475429
113571a670
121ab22b99
1311256909
149146861
156029039
hex414da25

68475429 has 32 divisors (see below), whose sum is σ = 111175680. Its totient is φ = 41310000.

The previous prime is 68475413. The next prime is 68475437. The reversal of 68475429 is 92457486.

It is a happy number.

68475429 is a `hidden beast` number, since 68 + 47 + 542 + 9 = 666.

It is not a de Polignac number, because 68475429 - 24 = 68475413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68475499) 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 31 ways as a sum of consecutive naturals, for example, 90804 + ... + 91554.

It is an arithmetic number, because the mean of its divisors is an integer number (3474240).

Almost surely, 268475429 is an apocalyptic number.

It is an amenable number.

68475429 is a deficient number, since it is larger than the sum of its proper divisors (42700251).

68475429 is a wasteful number, since it uses less digits than its factorization.

68475429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1072 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 68475429 is about 8274.9881570912. The cubic root of 68475429 is about 409.1145455838.

The spelling of 68475429 in words is "sixty-eight million, four hundred seventy-five thousand, four hundred twenty-nine".

Divisors: 1 3 9 11 27 33 99 297 307 751 921 2253 2763 3377 6759 8261 8289 10131 20277 24783 30393 74349 91179 223047 230557 691671 2075013 2536127 6225039 7608381 22825143 68475429