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20200200131 = 711312171831
BaseRepresentation
bin10010110100000001…
…101001011111000011
31221010210020111012102
4102310001221133003
5312332222401011
613140240221015
71313402603516
oct226401513703
957123214172
1020200200131
118626539381
123ab900a76b
131b9c002057
14d98b1ad7d
157d361473b
hex4b40697c3

20200200131 has 8 divisors (see below), whose sum is σ = 20641091328. Its totient is φ = 19763653000.

The previous prime is 20200200121. The next prime is 20200200143. The reversal of 20200200131 is 13100200202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20200200131 - 218 = 20199937987 is a prime.

It is a super-2 number, since 2×202002001312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200200101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076615 + ... + 1095216.

It is an arithmetic number, because the mean of its divisors is an integer number (2580136416).

Almost surely, 220200200131 is an apocalyptic number.

20200200131 is a deficient number, since it is larger than the sum of its proper divisors (440891197).

20200200131 is a wasteful number, since it uses less digits than its factorization.

20200200131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172033.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20200200131 its reverse (13100200202), we get a palindrome (33300400333).

The spelling of 20200200131 in words is "twenty billion, two hundred million, two hundred thousand, one hundred thirty-one".

Divisors: 1 71 131 9301 2171831 154200001 284509861 20200200131