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20020002204 = 2231668333517
BaseRepresentation
bin10010101001010010…
…001111110110011100
31220200020011111010010
4102221102033312130
5312000110032304
613110322043220
71306054132236
oct225122176634
956606144103
1020020002204
118543850a74
123a687a9510
131b7088c067
14d7cc11256
157c28bc789
hex4a948fd9c

20020002204 has 12 divisors (see below), whose sum is σ = 46713338504. Its totient is φ = 6673334064.

The previous prime is 20020002203. The next prime is 20020002241. The reversal of 20020002204 is 40220002002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1668333517 = 20020002204 / (2 + 0 + 0 + 2 + 0 + 0 + 0 + 2 + 2 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 20020002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020002203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834166747 + ... + 834166770.

Almost surely, 220020002204 is an apocalyptic number.

It is an amenable number.

20020002204 is an abundant number, since it is smaller than the sum of its proper divisors (26693336300).

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

20020002204 is a wasteful number, since it uses less digits than its factorization.

20020002204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668333524 (or 1668333522 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20020002204 its reverse (40220002002), we get a palindrome (60240004206).

The spelling of 20020002204 in words is "twenty billion, twenty million, two thousand, two hundred four".

Divisors: 1 2 3 4 6 12 1668333517 3336667034 5005000551 6673334068 10010001102 20020002204