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214453205 = 542890641
BaseRepresentation
bin11001100100001…
…00101111010101
3112221112100111022
430302010233111
5414400000310
633140250525
75212552001
oct1462045725
9487470438
10214453205
1110006495a
125b9a0a45
1335577ab5
14206a5701
1513c61a55
hexcc84bd5

214453205 has 4 divisors (see below), whose sum is σ = 257343852. Its totient is φ = 171562560.

The previous prime is 214453193. The next prime is 214453207. The reversal of 214453205 is 502354412.

It is a happy number.

214453205 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 can be written as a sum of positive squares in 2 ways, for example, as 33443089 + 181010116 = 5783^2 + 13454^2 .

It is not a de Polignac number, because 214453205 - 28 = 214452949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214453207) 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, 21445316 + ... + 21445325.

It is an arithmetic number, because the mean of its divisors is an integer number (64335963).

Almost surely, 2214453205 is an apocalyptic number.

It is an amenable number.

214453205 is a deficient number, since it is larger than the sum of its proper divisors (42890647).

214453205 is an equidigital number, since it uses as much as digits as its factorization.

214453205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42890646.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 214453205 is about 14644.2208737782. The cubic root of 214453205 is about 598.5643499957.

The spelling of 214453205 in words is "two hundred fourteen million, four hundred fifty-three thousand, two hundred five".

Divisors: 1 5 42890641 214453205