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213343201 = 311685991
BaseRepresentation
bin11001011011101…
…01101111100001
3112212102221212001
430231311233201
5414103440301
633100404001
75200246561
oct1455655741
9485387761
10213343201
11aa4769a5
125b546601
13352797a6
1420496da1
1513ae2c01
hexcb75be1

213343201 has 4 divisors (see below), whose sum is σ = 214029504. Its totient is φ = 212656900.

The previous prime is 213343187. The next prime is 213343231. The reversal of 213343201 is 102343312.

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 a cyclic number.

It is not a de Polignac number, because 213343201 - 219 = 212818913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213343231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342685 + ... + 343306.

It is an arithmetic number, because the mean of its divisors is an integer number (53507376).

Almost surely, 2213343201 is an apocalyptic number.

It is an amenable number.

213343201 is a deficient number, since it is larger than the sum of its proper divisors (686303).

213343201 is an equidigital number, since it uses as much as digits as its factorization.

213343201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686302.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213343201 is about 14606.2726593748. The cubic root of 213343201 is about 597.5298454423.

Adding to 213343201 its reverse (102343312), we get a palindrome (315686513).

The spelling of 213343201 in words is "two hundred thirteen million, three hundred forty-three thousand, two hundred one".

Divisors: 1 311 685991 213343201