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205141195321 = 2811831398711
BaseRepresentation
bin1011111100001101011…
…1100011101000111001
3201121111122100110121221
42333003113203220321
511330112121222241
6234123543432041
720551406250436
oct2770327435071
9647448313557
10205141195321
1179aaa947357
1233911455621
13164634b619a
149d00c18b8d
1555099bb5d1
hex2fc35e3a39

205141195321 has 8 divisors (see below), whose sum is σ = 205984188288. Its totient is φ = 204299004000.

The previous prime is 205141195291. The next prime is 205141195351. The reversal of 205141195321 is 123591141502.

It is an interprime number because it is at equal distance from previous prime (205141195291) and next prime (205141195351).

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 205141195321 - 211 = 205141193273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205141195351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315156 + ... + 713866.

It is an arithmetic number, because the mean of its divisors is an integer number (25748023536).

Almost surely, 2205141195321 is an apocalyptic number.

It is an amenable number.

205141195321 is a deficient number, since it is larger than the sum of its proper divisors (842992967).

205141195321 is a wasteful number, since it uses less digits than its factorization.

205141195321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400823.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 205141195321 in words is "two hundred five billion, one hundred forty-one million, one hundred ninety-five thousand, three hundred twenty-one".

Divisors: 1 281 1831 398711 514511 112037791 730039841 205141195321