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68711039 = 4147181197
BaseRepresentation
bin1000001100001…
…11001001111111
311210021212211022
410012013021333
5120042223124
610452414355
71463014505
oct406071177
9153255738
1068711039
1135870691
121b0173bb
1311309c27
1491a8675
156073c5e
hex418727f

68711039 has 16 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 64915200.

The previous prime is 68711029. The next prime is 68711047. The reversal of 68711039 is 93011786.

It is a cyclic number.

It is not a de Polignac number, because 68711039 - 24 = 68711023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68711029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348689 + ... + 348885.

It is an arithmetic number, because the mean of its divisors is an integer number (4540536).

Almost surely, 268711039 is an apocalyptic number.

68711039 is a deficient number, since it is larger than the sum of its proper divisors (3937537).

68711039 is a wasteful number, since it uses less digits than its factorization.

68711039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 68711039 is about 8289.2122062353. The cubic root of 68711039 is about 409.5832350386.

The spelling of 68711039 in words is "sixty-eight million, seven hundred eleven thousand, thirty-nine".

Divisors: 1 41 47 181 197 1927 7421 8077 8507 9259 35657 348787 379619 1461937 1675879 68711039