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68197679186 = 2713773484751
BaseRepresentation
bin111111100000111001…
…100000000001010010
320112000210222001111212
4333200321200001102
52104132101213221
651155104540122
74633000465010
oct774071400122
9215023861455
1068197679186
1126a168a283a
1211273321642
13657ac24130
14342d4d78b0
151b92299b5b
hexfe0e60052

68197679186 has 32 divisors (see below), whose sum is σ = 126066544128. Its totient is φ = 26944344000.

The previous prime is 68197679171. The next prime is 68197679191.

68197679186 is nontrivially palindromic in base 10.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101690 + ... + 383061.

It is an arithmetic number, because the mean of its divisors is an integer number (3939579504).

Almost surely, 268197679186 is an apocalyptic number.

68197679186 is a deficient number, since it is larger than the sum of its proper divisors (57868864942).

68197679186 is a wasteful number, since it uses less digits than its factorization.

68197679186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485546.

The product of its digits is 54867456, while the sum is 68.

The spelling of 68197679186 in words is "sixty-eight billion, one hundred ninety-seven million, six hundred seventy-nine thousand, one hundred eighty-six".

Divisors: 1 2 7 13 14 26 91 182 773 1546 5411 10049 10822 20098 70343 140686 484751 969502 3393257 6301763 6786514 12603526 44112341 88224682 374712523 749425046 2622987661 4871262799 5245975322 9742525598 34098839593 68197679186