Search a number
-
+
2113163420 = 225105658171
BaseRepresentation
bin111110111110100…
…0101000010011100
312110021021211020212
41331331011002130
513311432212140
6545404231552
7103236410204
oct17575050234
95407254225
102113163420
11994909a55
124ab83b5b8
13278a49574
14160915404
15c57b7765
hex7df4509c

2113163420 has 12 divisors (see below), whose sum is σ = 4437643224. Its totient is φ = 845265360.

The previous prime is 2113163417. The next prime is 2113163449. The reversal of 2113163420 is 243613112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52829066 + ... + 52829105.

It is an arithmetic number, because the mean of its divisors is an integer number (369803602).

Almost surely, 22113163420 is an apocalyptic number.

2113163420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113163420 is an abundant number, since it is smaller than the sum of its proper divisors (2324479804).

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

2113163420 is a wasteful number, since it uses less digits than its factorization.

2113163420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105658180 (or 105658178 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2113163420 is about 45969.1572687601. The cubic root of 2113163420 is about 1283.2492764795.

Adding to 2113163420 its reverse (243613112), we get a palindrome (2356776532).

The spelling of 2113163420 in words is "two billion, one hundred thirteen million, one hundred sixty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 105658171 211316342 422632684 528290855 1056581710 2113163420