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206434441 = 2919935771
BaseRepresentation
bin11000100110111…
…11000010001001
3112101102221211001
430103133002021
5410321400231
632252335001
75054443453
oct1423370211
9471387731
10206434441
11a6588284
1259174461
13339cac75
141d5b92d3
15131cab61
hexc4df089

206434441 has 8 divisors (see below), whose sum is σ = 214632000. Its totient is φ = 198308880.

The previous prime is 206434429. The next prime is 206434457. The reversal of 206434441 is 144434602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206434441 - 25 = 206434409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206434421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12115 + ... + 23656.

It is an arithmetic number, because the mean of its divisors is an integer number (26829000).

Almost surely, 2206434441 is an apocalyptic number.

It is an amenable number.

206434441 is a deficient number, since it is larger than the sum of its proper divisors (8197559).

206434441 is a wasteful number, since it uses less digits than its factorization.

206434441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35999.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 206434441 is about 14367.8265927732. The cubic root of 206434441 is about 591.0089420440.

The spelling of 206434441 in words is "two hundred six million, four hundred thirty-four thousand, four hundred forty-one".

Divisors: 1 29 199 5771 35771 1037359 7118429 206434441