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68307208798 = 2101835340483
BaseRepresentation
bin111111100111011011…
…010100101001011110
320112022110001201220011
4333213123110221132
52104343121140143
651214020313434
74635500460223
oct774733245136
9215273051804
1068307208798
1126a72702a84
12112a3b4287a
13659782335a
14343dc8994a
151b9bbd2e9d
hexfe76d4a5e

68307208798 has 16 divisors (see below), whose sum is σ = 103490220816. Its totient is φ = 33810566400.

The previous prime is 68307208709. The next prime is 68307208829. The reversal of 68307208798 is 89780270386.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1667065 + ... + 1707547.

It is an arithmetic number, because the mean of its divisors is an integer number (6468138801).

Almost surely, 268307208798 is an apocalyptic number.

68307208798 is a deficient number, since it is larger than the sum of its proper divisors (35183012018).

68307208798 is a wasteful number, since it uses less digits than its factorization.

68307208798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48939.

The product of its (nonzero) digits is 8128512, while the sum is 58.

The spelling of 68307208798 in words is "sixty-eight billion, three hundred seven million, two hundred eight thousand, seven hundred ninety-eight".

Divisors: 1 2 101 202 8353 16706 40483 80966 843653 1687306 4088783 8177566 338154499 676308998 34153604399 68307208798