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68761683 = 332546729
BaseRepresentation
bin1000001100100…
…11100001010011
311210101110022000
410012103201103
5120100333213
610453445043
71463315244
oct406234123
9153343260
1068761683
11358a5741
121b040783
1311326cb3
1491bcccb
156083c73
hex4193853

68761683 has 8 divisors (see below), whose sum is σ = 101869200. Its totient is φ = 45841104.

The previous prime is 68761663. The next prime is 68761747. The reversal of 68761683 is 38616786.

It is not a de Polignac number, because 68761683 - 26 = 68761619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68761663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273338 + ... + 1273391.

It is an arithmetic number, because the mean of its divisors is an integer number (12733650).

Almost surely, 268761683 is an apocalyptic number.

68761683 is a deficient number, since it is larger than the sum of its proper divisors (33107517).

68761683 is a wasteful number, since it uses less digits than its factorization.

68761683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546738 (or 2546732 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 68761683 is about 8292.2664573686. The cubic root of 68761683 is about 409.6838391506.

The spelling of 68761683 in words is "sixty-eight million, seven hundred sixty-one thousand, six hundred eighty-three".

Divisors: 1 3 9 27 2546729 7640187 22920561 68761683