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68253447 = 347484067
BaseRepresentation
bin1000001000101…
…11011100000111
311202102122010110
410010113130013
5114433102242
610434524103
71456100433
oct404273407
9152378113
1068253447
1135588909
121aa36633
13111a9872
1490c99c3
155ed339c
hex4117707

68253447 has 8 divisors (see below), whose sum is σ = 92941056. Its totient is φ = 44534072.

The previous prime is 68253433. The next prime is 68253463. The reversal of 68253447 is 74435286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68253447 - 27 = 68253319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68253047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241893 + ... + 242174.

It is an arithmetic number, because the mean of its divisors is an integer number (11617632).

Almost surely, 268253447 is an apocalyptic number.

68253447 is a deficient number, since it is larger than the sum of its proper divisors (24687609).

68253447 is a wasteful number, since it uses less digits than its factorization.

68253447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484117.

The product of its digits is 161280, while the sum is 39.

The square root of 68253447 is about 8261.5644402256. The cubic root of 68253447 is about 408.6719811067.

The spelling of 68253447 in words is "sixty-eight million, two hundred fifty-three thousand, four hundred forty-seven".

Divisors: 1 3 47 141 484067 1452201 22751149 68253447