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201210205 = 575748863
BaseRepresentation
bin10111111111000…
…11100101011101
3112000121112111211
423333203211131
5403002211310
631544344421
74662154450
oct1377434535
9460545454
10201210205
11a363a229
1257475111
13328bc0c1
141ca19497
15129e7c8a
hexbfe395d

201210205 has 8 divisors (see below), whose sum is σ = 275945472. Its totient is φ = 137972688.

The previous prime is 201210197. The next prime is 201210211. The reversal of 201210205 is 502012102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201210205 - 23 = 201210197 is a prime.

It is a super-2 number, since 2×2012102052 = 80971093192284050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2874397 + ... + 2874466.

It is an arithmetic number, because the mean of its divisors is an integer number (34493184).

Almost surely, 2201210205 is an apocalyptic number.

It is an amenable number.

201210205 is a deficient number, since it is larger than the sum of its proper divisors (74735267).

201210205 is an equidigital number, since it uses as much as digits as its factorization.

201210205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748875.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 201210205 is about 14184.8583003145. The cubic root of 201210205 is about 585.9807300679.

Adding to 201210205 its reverse (502012102), we get a palindrome (703222307).

The spelling of 201210205 in words is "two hundred one million, two hundred ten thousand, two hundred five".

Divisors: 1 5 7 35 5748863 28744315 40242041 201210205