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68379286 = 234189643
BaseRepresentation
bin1000001001101…
…10001010010110
311202200000202011
410010312022112
5120001114121
610441334434
71460133343
oct404661226
9152600664
1068379286
1135664408
121aa9741a
1311221c21
14911d7ca
15600a7e1
hex4136296

68379286 has 4 divisors (see below), whose sum is σ = 102568932. Its totient is φ = 34189642.

The previous prime is 68379257. The next prime is 68379307. The reversal of 68379286 is 68297386.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17094820 + ... + 17094823.

It is an arithmetic number, because the mean of its divisors is an integer number (25642233).

Almost surely, 268379286 is an apocalyptic number.

68379286 is a deficient number, since it is larger than the sum of its proper divisors (34189646).

68379286 is a wasteful number, since it uses less digits than its factorization.

68379286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34189645.

The product of its digits is 870912, while the sum is 49.

The square root of 68379286 is about 8269.1768635095. The cubic root of 68379286 is about 408.9229833283.

The spelling of 68379286 in words is "sixty-eight million, three hundred seventy-nine thousand, two hundred eighty-six".

Divisors: 1 2 34189643 68379286