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68407627 = 653104759
BaseRepresentation
bin1000001001111…
…01000101001011
311202201110121211
410010331011023
5120003021002
610442113551
71460312101
oct404750513
9152643554
1068407627
1135683732
121aaab8b7
1311231ab2
149129c71
156013dd7
hex413d14b

68407627 has 4 divisors (see below), whose sum is σ = 68513040. Its totient is φ = 68302216.

The previous prime is 68407583. The next prime is 68407667. The reversal of 68407627 is 72670486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68407627 - 219 = 67883339 is a prime.

It is a super-2 number, since 2×684076272 = 9359206863542258, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68407627.

It is not an unprimeable number, because it can be changed into a prime (68407667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51727 + ... + 53032.

It is an arithmetic number, because the mean of its divisors is an integer number (17128260).

Almost surely, 268407627 is an apocalyptic number.

68407627 is a deficient number, since it is larger than the sum of its proper divisors (105413).

68407627 is a wasteful number, since it uses less digits than its factorization.

68407627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105412.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 68407627 is about 8270.8903390143. The cubic root of 68407627 is about 408.9794706370.

The spelling of 68407627 in words is "sixty-eight million, four hundred seven thousand, six hundred twenty-seven".

Divisors: 1 653 104759 68407627