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20200542877 = 124920697817
BaseRepresentation
bin10010110100000010…
…111101001010011101
31221010210212220100201
4102310002331022131
5312332314333002
613140251423501
71313405532004
oct226402751235
957123786321
1020200542877
118626752939
123ab9154b91
131b9c0c2068
14d98ba9c3b
157d3681087
hex4b40bd29d

20200542877 has 8 divisors (see below), whose sum is σ = 20229075000. Its totient is φ = 20172033024.

The previous prime is 20200542841. The next prime is 20200542899. The reversal of 20200542877 is 77824500202.

It can be written as a sum of positive squares in 4 ways, for example, as 884824516 + 19315718361 = 29746^2 + 138981^2 .

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 20200542877 - 231 = 18053059229 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 (20200542577) 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 7 ways as a sum of consecutive naturals, for example, 2580273 + ... + 2588089.

It is an arithmetic number, because the mean of its divisors is an integer number (2528634375).

Almost surely, 220200542877 is an apocalyptic number.

It is an amenable number.

20200542877 is a deficient number, since it is larger than the sum of its proper divisors (28532123).

20200542877 is a wasteful number, since it uses less digits than its factorization.

20200542877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11135.

The product of its (nonzero) digits is 62720, while the sum is 37.

The spelling of 20200542877 in words is "twenty billion, two hundred million, five hundred forty-two thousand, eight hundred seventy-seven".

Divisors: 1 1249 2069 7817 2584181 9763433 16173373 20200542877