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20200275250 = 25380801101
BaseRepresentation
bin10010110100000001…
…111011110100110010
31221010210101022020121
4102310001323310302
5312332232302000
613140242000454
71313403335521
oct226401736462
957123338217
1020200275250
11862658a861
123ab904612a
131b9c02a2bc
14d98b3a4b8
157d362bb1a
hex4b407bd32

20200275250 has 16 divisors (see below), whose sum is σ = 37814915736. Its totient is φ = 8080110000.

The previous prime is 20200275229. The next prime is 20200275259. The reversal of 20200275250 is 5257200202.

It can be written as a sum of positive squares in 4 ways, for example, as 817788409 + 19382486841 = 28597^2 + 139221^2 .

It is a super-2 number, since 2×202002752502 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20200275259) 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, 40400301 + ... + 40400800.

Almost surely, 220200275250 is an apocalyptic number.

20200275250 is a deficient number, since it is larger than the sum of its proper divisors (17614640486).

20200275250 is an equidigital number, since it uses as much as digits as its factorization.

20200275250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80801118 (or 80801108 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

Adding to 20200275250 its reverse (5257200202), we get a palindrome (25457475452).

The spelling of 20200275250 in words is "twenty billion, two hundred million, two hundred seventy-five thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 80801101 161602202 404005505 808011010 2020027525 4040055050 10100137625 20200275250