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68282828286 = 2317894174873
BaseRepresentation
bin111111100101111110…
…010100010111111110
320112020202012002010020
4333211332110113332
52104320401001121
651211345553010
74635053315061
oct774576242776
9215222162106
1068282828286
1126a5a9705a2
1211297945766
13659276810a
14343a9408d8
151b999b91c6
hexfe5f945fe

68282828286 has 32 divisors (see below), whose sum is σ = 144617034528. Its totient is φ = 21419381760.

The previous prime is 68282828239. The next prime is 68282828287.

68282828286 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68282828287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874546 + ... + 949418.

It is an arithmetic number, because the mean of its divisors is an integer number (4519282329).

Almost surely, 268282828286 is an apocalyptic number.

68282828286 is an abundant number, since it is smaller than the sum of its proper divisors (76334206242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68282828286 is a wasteful number, since it uses less digits than its factorization.

68282828286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83836.

The product of its digits is 18874368, while the sum is 60.

The spelling of 68282828286 in words is "sixty-eight billion, two hundred eighty-two million, eight hundred twenty-eight thousand, two hundred eighty-six".

Divisors: 1 2 3 6 17 34 51 102 8941 17882 26823 53646 74873 149746 151997 224619 303994 449238 455991 911982 1272841 2545682 3818523 7637046 669439493 1338878986 2008318479 4016636958 11380471381 22760942762 34141414143 68282828286