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68351699367 = 337361649203
BaseRepresentation
bin111111101010000101…
…000010100110100111
320112102112210002111000
4333222011002212213
52104441013334432
651222250044343
74636550600310
oct775205024647
9215375702430
1068351699367
1126a95830446
12112b6a196b3
1365a3accb33
143445b4b607
151ba0a7057c
hexfea1429a7

68351699367 has 16 divisors (see below), whose sum is σ = 115727745280. Its totient is φ = 39058113816.

The previous prime is 68351699363. The next prime is 68351699393. The reversal of 68351699367 is 76399615386.

68351699367 is a `hidden beast` number, since 6 + 83 + 516 + 9 + 9 + 36 + 7 = 666.

It is not a de Polignac number, because 68351699367 - 22 = 68351699363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68351699363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180824413 + ... + 180824790.

It is an arithmetic number, because the mean of its divisors is an integer number (7232984080).

Almost surely, 268351699367 is an apocalyptic number.

68351699367 is a deficient number, since it is larger than the sum of its proper divisors (47376045913).

68351699367 is a wasteful number, since it uses less digits than its factorization.

68351699367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361649219 (or 361649213 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The spelling of 68351699367 in words is "sixty-eight billion, three hundred fifty-one million, six hundred ninety-nine thousand, three hundred sixty-seven".

Divisors: 1 3 7 9 21 27 63 189 361649203 1084947609 2531544421 3254842827 7594633263 9764528481 22783899789 68351699367