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210130201 = 297245869
BaseRepresentation
bin11001000011001…
…01010100011001
3112122101201110001
430201211110121
5412243131301
632503453001
75131035331
oct1441452431
9478351401
10210130201
11a8681a26
125a457161
13346c31c8
141dc9c0c1
15136aac01
hexc865519

210130201 has 4 divisors (see below), whose sum is σ = 217376100. Its totient is φ = 202884304.

The previous prime is 210130169. The next prime is 210130223. The reversal of 210130201 is 102031012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 44235801 + 165894400 = 6651^2 + 12880^2 .

It is a cyclic number.

It is not a de Polignac number, because 210130201 - 25 = 210130169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210140201) 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, 3622906 + ... + 3622963.

It is an arithmetic number, because the mean of its divisors is an integer number (54344025).

Almost surely, 2210130201 is an apocalyptic number.

It is an amenable number.

210130201 is a deficient number, since it is larger than the sum of its proper divisors (7245899).

210130201 is an equidigital number, since it uses as much as digits as its factorization.

210130201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245898.

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

The square root of 210130201 is about 14495.8684113785. The cubic root of 210130201 is about 594.5150118947.

Adding to 210130201 its reverse (102031012), we get a palindrome (312161213).

The spelling of 210130201 in words is "two hundred ten million, one hundred thirty thousand, two hundred one".

Divisors: 1 29 7245869 210130201