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68683874 = 274905991
BaseRepresentation
bin1000001100000…
…00100001100010
311210020111120012
410012000201202
5120040340444
610452044522
71462542350
oct406004142
9153214505
1068683874
1135852236
121b003742
13112ca75c
14919c7d0
15606ab9e
hex4180862

68683874 has 8 divisors (see below), whose sum is σ = 117743808. Its totient is φ = 29435940.

The previous prime is 68683837. The next prime is 68683883. The reversal of 68683874 is 47838686.

It is a happy number.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452982 + ... + 2453009.

It is an arithmetic number, because the mean of its divisors is an integer number (14717976).

Almost surely, 268683874 is an apocalyptic number.

68683874 is a deficient number, since it is larger than the sum of its proper divisors (49059934).

68683874 is a wasteful number, since it uses less digits than its factorization.

68683874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906000.

The product of its digits is 1548288, while the sum is 50.

The square root of 68683874 is about 8287.5734687543. The cubic root of 68683874 is about 409.5292514995.

The spelling of 68683874 in words is "sixty-eight million, six hundred eighty-three thousand, eight hundred seventy-four".

Divisors: 1 2 7 14 4905991 9811982 34341937 68683874