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212132443 = 1782115199
BaseRepresentation
bin11001010010011…
…10001001011011
3112210011110000011
430221032021123
5413301214233
633014422351
75154044635
oct1451161133
9483143004
10212132443
11a981a276
125b0619b7
1334c44673
142025da55
15139540cd
hexca4e25b

212132443 has 8 divisors (see below), whose sum is σ = 224899200. Its totient is φ = 199397760.

The previous prime is 212132429. The next prime is 212132449. The reversal of 212132443 is 344231212.

212132443 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 212132443 - 213 = 212124251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212132449) 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, 6358 + ... + 21556.

It is an arithmetic number, because the mean of its divisors is an integer number (28112400).

Almost surely, 2212132443 is an apocalyptic number.

212132443 is a deficient number, since it is larger than the sum of its proper divisors (12766757).

212132443 is a wasteful number, since it uses less digits than its factorization.

212132443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16037.

The product of its digits is 1152, while the sum is 22.

The square root of 212132443 is about 14564.7671797389. The cubic root of 212132443 is about 596.3973400686.

Adding to 212132443 its reverse (344231212), we get a palindrome (556363655).

The spelling of 212132443 in words is "two hundred twelve million, one hundred thirty-two thousand, four hundred forty-three".

Divisors: 1 17 821 13957 15199 258383 12478379 212132443