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212114491 = 1712477323
BaseRepresentation
bin11001010010010…
…01110000111011
3112210010112101021
430221021300323
5413300130431
633014203311
75153641411
oct1451116073
9483115337
10212114491
11a9807836
125b053537
1334c39444
14202572b1
151394db11
hexca49c3b

212114491 has 4 divisors (see below), whose sum is σ = 224591832. Its totient is φ = 199637152.

The previous prime is 212114479. The next prime is 212114521. The reversal of 212114491 is 194411212.

212114491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212114491 - 27 = 212114363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212114401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6238645 + ... + 6238678.

It is an arithmetic number, because the mean of its divisors is an integer number (56147958).

Almost surely, 2212114491 is an apocalyptic number.

212114491 is a deficient number, since it is larger than the sum of its proper divisors (12477341).

212114491 is a wasteful number, since it uses less digits than its factorization.

212114491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12477340.

The product of its digits is 576, while the sum is 25.

The square root of 212114491 is about 14564.1508849641. The cubic root of 212114491 is about 596.3805159453.

The spelling of 212114491 in words is "two hundred twelve million, one hundred fourteen thousand, four hundred ninety-one".

Divisors: 1 17 12477323 212114491