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20446140301 = 157130230193
BaseRepresentation
bin10011000010101011…
…110101011110001101
31221202221000112200121
4103002223311132031
5313333202442201
613220503424541
71322450216326
oct230253653615
957687015617
1020446140301
118742349914
123b67455151
131c0ac52892
14dbd65b44d
157e9ee59a1
hex4c2af578d

20446140301 has 4 divisors (see below), whose sum is σ = 20576370652. Its totient is φ = 20315909952.

The previous prime is 20446140289. The next prime is 20446140311. The reversal of 20446140301 is 10304164402.

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 4895800900 + 15550339401 = 69970^2 + 124701^2 .

It is a cyclic number.

It is not a de Polignac number, because 20446140301 - 25 = 20446140269 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 (20446140311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65114940 + ... + 65115253.

It is an arithmetic number, because the mean of its divisors is an integer number (5144092663).

Almost surely, 220446140301 is an apocalyptic number.

It is an amenable number.

20446140301 is a deficient number, since it is larger than the sum of its proper divisors (130230351).

20446140301 is a wasteful number, since it uses less digits than its factorization.

20446140301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130230350.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 20446140301 in words is "twenty billion, four hundred forty-six million, one hundred forty thousand, three hundred one".

Divisors: 1 157 130230193 20446140301