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68849694886 = 2721423493709
BaseRepresentation
bin100000000011111000…
…0101111100010100110
320120201020211212220111
41000013300233202212
52112001010214021
651343515523234
74655105515300
oct1000760574246
9216636755814
1068849694886
1127220948895
121141575951a
13665303273b
143491d40970
151bce63e8e1
hex1007c2f8a6

68849694886 has 24 divisors (see below), whose sum is σ = 120220359840. Its totient is φ = 29486216592.

The previous prime is 68849694877. The next prime is 68849694899.

68849694886 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107401 + ... + 386308.

It is an arithmetic number, because the mean of its divisors is an integer number (5009181660).

Almost surely, 268849694886 is an apocalyptic number.

68849694886 is a deficient number, since it is larger than the sum of its proper divisors (51370664954).

68849694886 is a wasteful number, since it uses less digits than its factorization.

68849694886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495148 (or 495141 counting only the distinct ones).

The product of its digits is 1146617856, while the sum is 76.

The spelling of 68849694886 in words is "sixty-eight billion, eight hundred forty-nine million, six hundred ninety-four thousand, eight hundred eighty-six".

Divisors: 1 2 7 14 49 98 1423 2846 9961 19922 69727 139454 493709 987418 3455963 6911926 24191741 48383482 702547907 1405095814 4917835349 9835670698 34424847443 68849694886