Search a number
-
+
80186868118 = 2780923832971
BaseRepresentation
bin100101010101110000…
…0101000000110010110
321122222100201221212101
41022223200220012112
52303210314234433
6100500510512314
75536051063420
oct1125340500626
9248870657771
1080186868118
113100943a945
121365a50569a
13773ba71b76
143c498dd810
152144ad207d
hex12ab828196

80186868118 has 32 divisors (see below), whose sum is σ = 137737221120. Its totient is φ = 34297369920.

The previous prime is 80186868089. The next prime is 80186868137. The reversal of 80186868118 is 81186868108.

It is a congruent 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, 26988373 + ... + 26991343.

It is an arithmetic number, because the mean of its divisors is an integer number (4304288160).

Almost surely, 280186868118 is an apocalyptic number.

80186868118 is a deficient number, since it is larger than the sum of its proper divisors (57550353002).

80186868118 is a wasteful number, since it uses less digits than its factorization.

80186868118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172.

The product of its (nonzero) digits is 1179648, while the sum is 55.

The spelling of 80186868118 in words is "eighty billion, one hundred eighty-six million, eight hundred sixty-eight thousand, one hundred eighteen".

Divisors: 1 2 7 14 809 1618 2383 2971 4766 5663 5942 11326 16681 20797 33362 41594 1927847 2403539 3855694 4807078 7079893 13494929 14159786 16824773 26989858 33649546 49559251 99118502 5727633437 11455266874 40093434059 80186868118