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211232229 = 3135416211
BaseRepresentation
bin11001001011100…
…10010111100101
3112201110201010220
430211302113211
5413033412404
632543234553
75143305255
oct1445622745
9481421126
10211232229
11a926499a
125a8a8a59
13349ba9b0
14200a7965
15138274d9
hexc9725e5

211232229 has 8 divisors (see below), whose sum is σ = 303307872. Its totient is φ = 129989040.

The previous prime is 211232209. The next prime is 211232243. The reversal of 211232229 is 922232112.

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

It is not a de Polignac number, because 211232229 - 28 = 211231973 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211232199 and 211232208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211232209) 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, 2708067 + ... + 2708144.

It is an arithmetic number, because the mean of its divisors is an integer number (37913484).

Almost surely, 2211232229 is an apocalyptic number.

It is an amenable number.

211232229 is a deficient number, since it is larger than the sum of its proper divisors (92075643).

211232229 is a wasteful number, since it uses less digits than its factorization.

211232229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5416227.

The product of its digits is 864, while the sum is 24.

The square root of 211232229 is about 14533.8304999061. The cubic root of 211232229 is about 595.5525117583.

The spelling of 211232229 in words is "two hundred eleven million, two hundred thirty-two thousand, two hundred twenty-nine".

Divisors: 1 3 13 39 5416211 16248633 70410743 211232229