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20002022231 = 171176589543
BaseRepresentation
bin10010101000001101…
…101010001101010111
31220121222100000020012
4102220031222031113
5311431004202411
613104440430435
71305445245422
oct225015521527
956558300205
1020002022231
118534690394
123a6277841b
131b69c35219
14d7a6909b9
157c101a18b
hex4a836a357

20002022231 has 4 divisors (see below), whose sum is σ = 21178611792. Its totient is φ = 18825432672.

The previous prime is 20002022203. The next prime is 20002022267. The reversal of 20002022231 is 13222020002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13222020002 = 26611010001.

It is a cyclic number.

It is not a de Polignac number, because 20002022231 - 214 = 20002005847 is a prime.

It is a super-3 number, since 3×200020222313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002022281) 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, 588294755 + ... + 588294788.

It is an arithmetic number, because the mean of its divisors is an integer number (5294652948).

Almost surely, 220002022231 is an apocalyptic number.

20002022231 is a deficient number, since it is larger than the sum of its proper divisors (1176589561).

20002022231 is a wasteful number, since it uses less digits than its factorization.

20002022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176589560.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20002022231 its reverse (13222020002), we get a palindrome (33224042233).

The spelling of 20002022231 in words is "twenty billion, two million, twenty-two thousand, two hundred thirty-one".

Divisors: 1 17 1176589543 20002022231