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204420141 = 3222713349
BaseRepresentation
bin11000010111100…
…11010000101101
3112020122121201100
430023303100231
5404312421031
632141233313
75031354042
oct1413632055
9466577640
10204420141
11a5431972
1258562839
1333474183
141d2131c9
1512e2dde6
hexc2f342d

204420141 has 6 divisors (see below), whose sum is σ = 295273550. Its totient is φ = 136280088.

The previous prime is 204420109. The next prime is 204420143. The reversal of 204420141 is 141024402.

204420141 is a `hidden beast` number, since 204 + 420 + 1 + 41 = 666.

204420141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 175032900 + 29387241 = 13230^2 + 5421^2 .

It is not a de Polignac number, because 204420141 - 25 = 204420109 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 (204420143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11356666 + ... + 11356683.

Almost surely, 2204420141 is an apocalyptic number.

It is an amenable number.

204420141 is a deficient number, since it is larger than the sum of its proper divisors (90853409).

204420141 is a wasteful number, since it uses less digits than its factorization.

204420141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22713355 (or 22713352 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 204420141 is about 14297.5571689712. The cubic root of 204420141 is about 589.0803838932.

Adding to 204420141 its reverse (141024402), we get a palindrome (345444543).

The spelling of 204420141 in words is "two hundred four million, four hundred twenty thousand, one hundred forty-one".

Divisors: 1 3 9 22713349 68140047 204420141