Search a number
-
+
80081447748 = 223233179257461
BaseRepresentation
bin100101010010100111…
…0011110101101000100
321122201000101001022020
41022211032132231010
52303001322311443
6100442223203140
75533331034411
oct1124516365504
9248630331266
1080081447748
1130a64986a75
121362b1464b0
137722c81153
143c398db108
15213a70b583
hex12a539eb44

80081447748 has 192 divisors, whose sum is σ = 205055262720. Its totient is φ = 24249139200.

The previous prime is 80081447659. The next prime is 80081447753. The reversal of 80081447748 is 84774418008.

It is a self number, because there is not a number n which added to its sum of digits gives 80081447748.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 173712238 + ... + 173712698.

It is an arithmetic number, because the mean of its divisors is an integer number (1067996160).

Almost surely, 280081447748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80081447748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102527631360).

80081447748 is an abundant number, since it is smaller than the sum of its proper divisors (124973814972).

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

80081447748 is a wasteful number, since it uses less digits than its factorization.

80081447748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 1605632, while the sum is 51.

The spelling of 80081447748 in words is "eighty billion, eighty-one million, four hundred forty-seven thousand, seven hundred forty-eight".