Search a number
-
+
20616048124 = 2272105183919
BaseRepresentation
bin10011001100110011…
…111110110111111100
31222012202201202101221
4103030303332313330
5314210202014444
613245413243124
71326612342400
oct231463766774
958182652357
1020616048124
11881a249101
123bb43334a4
131c37201c59
14dd8049100
15809da8a84
hex4cccfedfc

20616048124 has 18 divisors (see below), whose sum is σ = 41968384080. Its totient is φ = 8835449112.

The previous prime is 20616048029. The next prime is 20616048139. The reversal of 20616048124 is 42184061602.

It is a self number, because there is not a number n which added to its sum of digits gives 20616048124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52591764 + ... + 52592155.

Almost surely, 220616048124 is an apocalyptic number.

It is an amenable number.

20616048124 is an abundant number, since it is smaller than the sum of its proper divisors (21352335956).

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

20616048124 is a wasteful number, since it uses less digits than its factorization.

20616048124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105183937 (or 105183928 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20616048124 in words is "twenty billion, six hundred sixteen million, forty-eight thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 49 98 196 105183919 210367838 420735676 736287433 1472574866 2945149732 5154012031 10308024062 20616048124