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211050213 = 31111356597
BaseRepresentation
bin11001001010001…
…01111011100101
3112201010110110120
430211011323211
5413012101323
632535312153
75141616513
oct1445057345
9481113416
10211050213
11a9150170
125a81b659
1334955baa
142005b4b3
15137dd5e3
hexc945ee5

211050213 has 16 divisors (see below), whose sum is σ = 309704256. Its totient is φ = 126775040.

The previous prime is 211050211. The next prime is 211050283. The reversal of 211050213 is 312050112.

It is a cyclic number.

It is not a de Polignac number, because 211050213 - 21 = 211050211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211050192 and 211050201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211050211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24570 + ... + 32027.

It is an arithmetic number, because the mean of its divisors is an integer number (19356516).

Almost surely, 2211050213 is an apocalyptic number.

It is an amenable number.

211050213 is a deficient number, since it is larger than the sum of its proper divisors (98654043).

211050213 is a wasteful number, since it uses less digits than its factorization.

211050213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56724.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 211050213 is about 14527.5673462559. The cubic root of 211050213 is about 595.3814027108.

The spelling of 211050213 in words is "two hundred eleven million, fifty thousand, two hundred thirteen".

Divisors: 1 3 11 33 113 339 1243 3729 56597 169791 622567 1867701 6395461 19186383 70350071 211050213