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211418082 = 23211745449
BaseRepresentation
bin11001001100111…
…11101111100010
3112201211011002100
430212133233202
5413110334312
632551231230
75145011151
oct1446375742
9481734070
10211418082
11a9381597
125a978516
1334a54475
1420115598
15138625dc
hexc99fbe2

211418082 has 12 divisors (see below), whose sum is σ = 458072550. Its totient is φ = 70472688.

The previous prime is 211418059. The next prime is 211418087. The reversal of 211418082 is 280814112.

It can be written as a sum of positive squares in only one way, i.e., 209699361 + 1718721 = 14481^2 + 1311^2 .

It is not an unprimeable number, because it can be changed into a prime (211418087) 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 5 ways as a sum of consecutive naturals, for example, 5872707 + ... + 5872742.

Almost surely, 2211418082 is an apocalyptic number.

211418082 is an abundant number, since it is smaller than the sum of its proper divisors (246654468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211418082 is a wasteful number, since it uses less digits than its factorization.

211418082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11745457 (or 11745454 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 211418082 is about 14540.2229006298. Note that the first 3 decimals coincide. The cubic root of 211418082 is about 595.7271264863.

The spelling of 211418082 in words is "two hundred eleven million, four hundred eighteen thousand, eighty-two".

Divisors: 1 2 3 6 9 18 11745449 23490898 35236347 70472694 105709041 211418082