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211002213 = 3312268841
BaseRepresentation
bin11001001001110…
…10001101100101
3112201001000121210
430210322031211
5413004032323
632534302033
75141326542
oct1444721545
9481030553
10211002213
11a91180a4
125a7b7919
133493a0a6
1420047bc9
15137ce293
hexc93a365

211002213 has 8 divisors (see below), whose sum is σ = 290411776. Its totient is φ = 136130400.

The previous prime is 211002167. The next prime is 211002217. The reversal of 211002213 is 312200112.

211002213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211002213 - 26 = 211002149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1134328 + ... + 1134513.

It is an arithmetic number, because the mean of its divisors is an integer number (36301472).

Almost surely, 2211002213 is an apocalyptic number.

It is an amenable number.

211002213 is a deficient number, since it is larger than the sum of its proper divisors (79409563).

211002213 is a wasteful number, since it uses less digits than its factorization.

211002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268875.

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

The square root of 211002213 is about 14525.9152207357. The cubic root of 211002213 is about 595.3362626250.

Adding to 211002213 its reverse (312200112), we get a palindrome (523202325).

The spelling of 211002213 in words is "two hundred eleven million, two thousand, two hundred thirteen".

Divisors: 1 3 31 93 2268841 6806523 70334071 211002213