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80786668708 = 22191062982483
BaseRepresentation
bin100101100111101000…
…0101011110010100100
321201112011100222121001
41023033100223302210
52310422341344313
6101040214403044
75556653232244
oct1131720536244
9251464328531
1080786668708
1131296a71a09
12137a7360484
1378060caa65
143ca5433b24
15217c5b0add
hex12cf42bca4

80786668708 has 12 divisors (see below), whose sum is σ = 148817547760. Its totient is φ = 38267369352.

The previous prime is 80786668687. The next prime is 80786668709.

80786668708 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×807866687082 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80786668708.

It is not an unprimeable number, because it can be changed into a prime (80786668709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531491166 + ... + 531491317.

Almost surely, 280786668708 is an apocalyptic number.

It is an amenable number.

80786668708 is a deficient number, since it is larger than the sum of its proper divisors (68030879052).

80786668708 is a wasteful number, since it uses less digits than its factorization.

80786668708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062982506 (or 1062982504 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 64.

The spelling of 80786668708 in words is "eighty billion, seven hundred eighty-six million, six hundred sixty-eight thousand, seven hundred eight".

Divisors: 1 2 4 19 38 76 1062982483 2125964966 4251929932 20196667177 40393334354 80786668708