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20013202133 = 191104781163
BaseRepresentation
bin10010101000111000…
…010011101011010101
31220122202101000011122
4102220320103223111
5311441334432013
613105520213325
71305642261041
oct225070235325
956582330148
1020013202133
11853aa26a81
123a6646a245
131b6c34ab52
14d7bd61021
157c1ec7a08
hex4a8e13ad5

20013202133 has 4 divisors (see below), whose sum is σ = 20117983488. Its totient is φ = 19908420780.

The previous prime is 20013202127. The next prime is 20013202169. The reversal of 20013202133 is 33120231002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20013202133 - 214 = 20013185749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013202193) by changing a digit.

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, 52390391 + ... + 52390772.

It is an arithmetic number, because the mean of its divisors is an integer number (5029495872).

Almost surely, 220013202133 is an apocalyptic number.

It is an amenable number.

20013202133 is a deficient number, since it is larger than the sum of its proper divisors (104781355).

20013202133 is a wasteful number, since it uses less digits than its factorization.

20013202133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104781354.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20013202133 its reverse (33120231002), we get a palindrome (53133433135).

The spelling of 20013202133 in words is "twenty billion, thirteen million, two hundred two thousand, one hundred thirty-three".

Divisors: 1 191 104781163 20013202133