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211084297 = 3730718583
BaseRepresentation
bin11001001010011…
…10010000001001
3112201012012012221
430211032100021
5413014144142
632540134041
75142121054
oct1445162011
9481165187
10211084297
11a9173836
125a837321
1334968568
1420069a9b
15137e8767
hexc94e409

211084297 has 8 divisors (see below), whose sum is σ = 217507136. Its totient is φ = 204699312.

The previous prime is 211084267. The next prime is 211084303. The reversal of 211084297 is 792480112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-211084297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211084267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2068 + ... + 20650.

It is an arithmetic number, because the mean of its divisors is an integer number (27188392).

Almost surely, 2211084297 is an apocalyptic number.

It is an amenable number.

211084297 is a deficient number, since it is larger than the sum of its proper divisors (6422839).

211084297 is a wasteful number, since it uses less digits than its factorization.

211084297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18927.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 211084297 is about 14528.7403789867. The cubic root of 211084297 is about 595.4134517781.

The spelling of 211084297 in words is "two hundred eleven million, eighty-four thousand, two hundred ninety-seven".

Divisors: 1 37 307 11359 18583 687571 5704981 211084297