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204421141 = 1771257659
BaseRepresentation
bin11000010111100…
…11100000010101
3112020122200002101
430023303200111
5404312434031
632141242101
75031360001
oct1413634025
9466580071
10204421141
11a54326a1
1258563331
1333474772
141d213701
1512e2e361
hexc2f3815

204421141 has 16 divisors (see below), whose sum is σ = 220682880. Its totient is φ = 188661760.

The previous prime is 204421109. The next prime is 204421153. The reversal of 204421141 is 141124402.

It is a cyclic number.

It is not a de Polignac number, because 204421141 - 25 = 204421109 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 (204421541) 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 15 ways as a sum of consecutive naturals, for example, 309870 + ... + 310528.

It is an arithmetic number, because the mean of its divisors is an integer number (13792680).

Almost surely, 2204421141 is an apocalyptic number.

It is an amenable number.

204421141 is a deficient number, since it is larger than the sum of its proper divisors (16261739).

204421141 is a wasteful number, since it uses less digits than its factorization.

204421141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 204421141 is about 14297.5921399374. The cubic root of 204421141 is about 589.0813444630.

Adding to 204421141 its reverse (141124402), we get a palindrome (345545543).

The spelling of 204421141 in words is "two hundred four million, four hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 17 71 257 659 1207 4369 11203 18247 46789 169363 310199 795413 2879171 12024773 204421141