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201100213 is a prime number
BaseRepresentation
bin10111111110010…
…00101110110101
3112000101221122001
423333020232311
5402440201323
631542135301
74661215666
oct1377105665
9460357561
10201100213
11a3574626
1257421531
1332881012
141c9cb36d
15129c53ad
hexbfc8bb5

201100213 has 2 divisors, whose sum is σ = 201100214. Its totient is φ = 201100212.

The previous prime is 201100189. The next prime is 201100253. The reversal of 201100213 is 312001102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200448964 + 651249 = 14158^2 + 807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-201100213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201100213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201100253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550106 + 100550107.

It is an arithmetic number, because the mean of its divisors is an integer number (100550107).

Almost surely, 2201100213 is an apocalyptic number.

It is an amenable number.

201100213 is a deficient number, since it is larger than the sum of its proper divisors (1).

201100213 is an equidigital number, since it uses as much as digits as its factorization.

201100213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201100213 is about 14180.9806783593. The cubic root of 201100213 is about 585.8739347217.

Adding to 201100213 its reverse (312001102), we get a palindrome (513101315).

It can be divided in two parts, 2011002 and 13, that added together give a triangular number (2011015 = T2005).

The spelling of 201100213 in words is "two hundred one million, one hundred thousand, two hundred thirteen".