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212132061 = 337856743
BaseRepresentation
bin11001010010011…
…10000011011101
3112210011102111000
430221032003131
5413301211221
633014420513
75154043551
oct1451160335
9483142430
10212132061
11a9819a59
125b061739
1334c4443b
142025d861
1513953e26
hexca4e0dd

212132061 has 8 divisors (see below), whose sum is σ = 314269760. Its totient is φ = 141421356.

The previous prime is 212132047. The next prime is 212132077. The reversal of 212132061 is 160231212.

212132061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-212132061 is a prime.

It is a super-2 number, since 2×2121320612 = 90000022608215442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212132021) 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, 3928345 + ... + 3928398.

It is an arithmetic number, because the mean of its divisors is an integer number (39283720).

Almost surely, 2212132061 is an apocalyptic number.

It is an amenable number.

212132061 is a deficient number, since it is larger than the sum of its proper divisors (102137699).

212132061 is an equidigital number, since it uses as much as digits as its factorization.

212132061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856752 (or 7856746 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 212132061 is about 14564.7540658948. The cubic root of 212132061 is about 596.3969820785.

Adding to 212132061 its reverse (160231212), we get a palindrome (372363273).

The spelling of 212132061 in words is "two hundred twelve million, one hundred thirty-two thousand, sixty-one".

Divisors: 1 3 9 27 7856743 23570229 70710687 212132061