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20202210013 = 100692006377
BaseRepresentation
bin10010110100001001…
…010100001011011101
31221010221000121020111
4102310021110023131
5312333231210023
613140351250021
71313425644316
oct226411241335
957127017214
1020202210013
118627691437
123ab9819911
131b9c556b2b
14d990c160d
157d38b000d
hex4b42542dd

20202210013 has 4 divisors (see below), whose sum is σ = 20204226460. Its totient is φ = 20200193568.

The previous prime is 20202209927. The next prime is 20202210037. The reversal of 20202210013 is 31001220202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10297581529 + 9904628484 = 101477^2 + 99522^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202210013 - 29 = 20202209501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20202209975 and 20202210002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202210053) 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, 993120 + ... + 1013257.

It is an arithmetic number, because the mean of its divisors is an integer number (5051056615).

Almost surely, 220202210013 is an apocalyptic number.

It is an amenable number.

20202210013 is a deficient number, since it is larger than the sum of its proper divisors (2016447).

20202210013 is a wasteful number, since it uses less digits than its factorization.

20202210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016446.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20202210013 its reverse (31001220202), we get a palindrome (51203430215).

The spelling of 20202210013 in words is "twenty billion, two hundred two million, two hundred ten thousand, thirteen".

Divisors: 1 10069 2006377 20202210013