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212000449 = 434930243
BaseRepresentation
bin11001010001011…
…01111011000001
3112202220201221111
430220231323001
5413233003244
633011523321
75152655053
oct1450557301
9482821844
10212000449
11a973a091
125abb9541
1334bc956b
14202278d3
1513929e34
hexca2dec1

212000449 has 4 divisors (see below), whose sum is σ = 216930736. Its totient is φ = 207070164.

The previous prime is 212000431. The next prime is 212000473. The reversal of 212000449 is 944000212.

212000449 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212000449 - 29 = 211999937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212000419) 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, 2465079 + ... + 2465164.

It is an arithmetic number, because the mean of its divisors is an integer number (54232684).

Almost surely, 2212000449 is an apocalyptic number.

It is an amenable number.

212000449 is a deficient number, since it is larger than the sum of its proper divisors (4930287).

212000449 is an equidigital number, since it uses as much as digits as its factorization.

212000449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4930286.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 212000449 is about 14560.2351972762. The cubic root of 212000449 is about 596.2736167279.

The spelling of 212000449 in words is "two hundred twelve million, four hundred forty-nine", and thus it is an aban number.

Divisors: 1 43 4930243 212000449