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205213325201 = 23101292730181
BaseRepresentation
bin1011111100011110101…
…0101101011110010001
3201121200200002001012222
42333013222231132101
511330234102401301
6234135041430425
720553243324563
oct2770752553621
9647620061188
10205213325201
117a037632625
123393163b415
131647541c2a1
149d0a633333
155510eb831b
hex2fc7aad791

205213325201 has 16 divisors (see below), whose sum is σ = 216336849408. Its totient is φ = 194274696000.

The previous prime is 205213325159. The next prime is 205213325221. The reversal of 205213325201 is 102523312502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 205213325201 - 210 = 205213324177 is a prime.

It is a super-2 number, since 2×2052133252012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205213325221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6784331 + ... + 6814511.

It is an arithmetic number, because the mean of its divisors is an integer number (13521053088).

Almost surely, 2205213325201 is an apocalyptic number.

It is an amenable number.

205213325201 is a deficient number, since it is larger than the sum of its proper divisors (11123524207).

205213325201 is a wasteful number, since it uses less digits than its factorization.

205213325201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33232.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 205213325201 its reverse (102523312502), we get a palindrome (307736637703).

The spelling of 205213325201 in words is "two hundred five billion, two hundred thirteen million, three hundred twenty-five thousand, two hundred one".

Divisors: 1 23 101 2323 2927 30181 67321 295627 694163 3048281 6799421 70110463 88339787 2031815101 8922318487 205213325201