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201210213 = 367070071
BaseRepresentation
bin10111111111000…
…11100101100101
3112000121112112010
423333203211211
5403002211323
631544344433
74662154461
oct1377434545
9460545463
10201210213
11a363a236
1257475119
13328bc0c9
141ca194a1
15129e7c93
hexbfe3965

201210213 has 4 divisors (see below), whose sum is σ = 268280288. Its totient is φ = 134140140.

The previous prime is 201210211. The next prime is 201210223. The reversal of 201210213 is 312012102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 201210213 - 21 = 201210211 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201210211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33535033 + ... + 33535038.

It is an arithmetic number, because the mean of its divisors is an integer number (67070072).

Almost surely, 2201210213 is an apocalyptic number.

It is an amenable number.

201210213 is a deficient number, since it is larger than the sum of its proper divisors (67070075).

201210213 is an equidigital number, since it uses as much as digits as its factorization.

201210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67070074.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201210213 is about 14184.8585823053. The cubic root of 201210213 is about 585.9807378340.

Adding to 201210213 its reverse (312012102), we get a palindrome (513222315).

The spelling of 201210213 in words is "two hundred one million, two hundred ten thousand, two hundred thirteen".

Divisors: 1 3 67070071 201210213