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68601725 = 521012269
BaseRepresentation
bin1000001011011…
…00011101111101
311210002022212122
410011230131331
5120030223400
610450212325
71462051013
oct405543575
9153068778
1068601725
11357a6545
121ab840a5
131129c24a
14917a8b3
156051685
hex416c77d

68601725 has 18 divisors (see below), whose sum is σ = 86236110. Its totient is φ = 54136000.

The previous prime is 68601707. The next prime is 68601751. The reversal of 68601725 is 52710686.

It can be written as a sum of positive squares in 9 ways, for example, as 3024121 + 65577604 = 1739^2 + 8098^2 .

It is not a de Polignac number, because 68601725 - 216 = 68536189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 254891 + ... + 255159.

It is an arithmetic number, because the mean of its divisors is an integer number (4790895).

Almost surely, 268601725 is an apocalyptic number.

It is an amenable number.

68601725 is a deficient number, since it is larger than the sum of its proper divisors (17634385).

68601725 is a wasteful number, since it uses less digits than its factorization.

68601725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 68601725 is about 8282.6158307626. The cubic root of 68601725 is about 409.3659145663.

The spelling of 68601725 in words is "sixty-eight million, six hundred one thousand, seven hundred twenty-five".

Divisors: 1 5 25 101 269 505 1345 2525 6725 10201 27169 51005 135845 255025 679225 2744069 13720345 68601725