Search a number
-
+
19680116061 = 335326896911
BaseRepresentation
bin10010010101000001…
…101011110101011101
31212210112121110222110
4102111001223311131
5310301102203221
613012501104233
71264456140444
oct222501536535
955715543873
1019680116061
118389a04531
1239929b8079
131b183374b8
14d49a17d5b
157a2b30776
hex49506bd5d

19680116061 has 16 divisors (see below), whose sum is σ = 26328084480. Its totient is φ = 13076152320.

The previous prime is 19680116059. The next prime is 19680116089. The reversal of 19680116061 is 16061108691.

It is not a de Polignac number, because 19680116061 - 21 = 19680116059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19680116161) 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, 2844196 + ... + 2851106.

It is an arithmetic number, because the mean of its divisors is an integer number (1645505280).

Almost surely, 219680116061 is an apocalyptic number.

It is an amenable number.

19680116061 is a deficient number, since it is larger than the sum of its proper divisors (6647968419).

19680116061 is a wasteful number, since it uses less digits than its factorization.

19680116061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9956.

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 19680116061 in words is "nineteen billion, six hundred eighty million, one hundred sixteen thousand, sixty-one".

Divisors: 1 3 353 1059 2689 6911 8067 20733 949217 2439583 2847651 7318749 18583679 55751037 6560038687 19680116061