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213301205 = 5133281557
BaseRepresentation
bin11001011011010…
…11011111010101
3112212100211020122
430231223133111
5414101114310
633055441325
75200013255
oct1455533725
9485324218
10213301205
11aa448397
125b526245
1335263640
1420485965
1513ad5555
hexcb6b7d5

213301205 has 8 divisors (see below), whose sum is σ = 275650872. Its totient is φ = 157514688.

The previous prime is 213301139. The next prime is 213301213. The reversal of 213301205 is 502103312.

It can be written as a sum of positive squares in 4 ways, for example, as 1976836 + 211324369 = 1406^2 + 14537^2 .

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 213301205 - 212 = 213297109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1640714 + ... + 1640843.

It is an arithmetic number, because the mean of its divisors is an integer number (34456359).

Almost surely, 2213301205 is an apocalyptic number.

It is an amenable number.

213301205 is a deficient number, since it is larger than the sum of its proper divisors (62349667).

213301205 is a wasteful number, since it uses less digits than its factorization.

213301205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281575.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 213301205 is about 14604.8349870856. The cubic root of 213301205 is about 597.4906355214.

Adding to 213301205 its reverse (502103312), we get a palindrome (715404517).

The spelling of 213301205 in words is "two hundred thirteen million, three hundred one thousand, two hundred five".

Divisors: 1 5 13 65 3281557 16407785 42660241 213301205