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68406862 = 2163209837
BaseRepresentation
bin1000001001111…
…00111001001110
311202201102120111
410010330321032
5120003004422
610442110234
71460306626
oct404747116
9152642514
1068406862
11356830a7
121aaab37a
1311231644
149129886
156013a77
hex413ce4e

68406862 has 8 divisors (see below), whose sum is σ = 103240296. Its totient is φ = 33993432.

The previous prime is 68406829. The next prime is 68406869. The reversal of 68406862 is 26860486.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68406869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104593 + ... + 105244.

It is an arithmetic number, because the mean of its divisors is an integer number (12905037).

Almost surely, 268406862 is an apocalyptic number.

68406862 is a deficient number, since it is larger than the sum of its proper divisors (34833434).

68406862 is a wasteful number, since it uses less digits than its factorization.

68406862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210002.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 68406862 is about 8270.8440923524. The cubic root of 68406862 is about 408.9779460971.

The spelling of 68406862 in words is "sixty-eight million, four hundred six thousand, eight hundred sixty-two".

Divisors: 1 2 163 326 209837 419674 34203431 68406862