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20353353201 = 322261483689
BaseRepresentation
bin10010111101001001…
…111000010111110001
31221112110102110201100
4102331021320113301
5313140424300301
613203350555013
71320242435106
oct227511702761
957473373640
1020353353201
1186a4a34565
123b40368a69
131bc496617c
14db11c6aad
157e1cb8286
hex4bd2785f1

20353353201 has 6 divisors (see below), whose sum is σ = 29399287970. Its totient is φ = 13568902128.

The previous prime is 20353353193. The next prime is 20353353221. The reversal of 20353353201 is 10235335302.

20353353201 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 335 + 320 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10187874225 + 10165478976 = 100935^2 + 100824^2 .

It is not a de Polignac number, because 20353353201 - 23 = 20353353193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20353353221) 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 5 ways as a sum of consecutive naturals, for example, 1130741836 + ... + 1130741853.

Almost surely, 220353353201 is an apocalyptic number.

It is an amenable number.

20353353201 is a deficient number, since it is larger than the sum of its proper divisors (9045934769).

20353353201 is a wasteful number, since it uses less digits than its factorization.

20353353201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261483695 (or 2261483692 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

Adding to 20353353201 its reverse (10235335302), we get a palindrome (30588688503).

The spelling of 20353353201 in words is "twenty billion, three hundred fifty-three million, three hundred fifty-three thousand, two hundred one".

Divisors: 1 3 9 2261483689 6784451067 20353353201