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204988101 = 382183227
BaseRepresentation
bin11000011011111…
…01111011000101
3112021201110210220
430031331323011
5404434104401
632201334553
75036240643
oct1415757305
9467643726
10204988101
11a578a65a
1258797459
1333612846
141d320193
1512ee2336
hexc37dec5

204988101 has 8 divisors (see below), whose sum is σ = 273653664. Its totient is φ = 136490640.

The previous prime is 204988097. The next prime is 204988117. The reversal of 204988101 is 101889402.

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

It is not a de Polignac number, because 204988101 - 22 = 204988097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204988141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39151 + ... + 44076.

It is an arithmetic number, because the mean of its divisors is an integer number (34206708).

Almost surely, 2204988101 is an apocalyptic number.

It is an amenable number.

204988101 is a deficient number, since it is larger than the sum of its proper divisors (68665563).

204988101 is an equidigital number, since it uses as much as digits as its factorization.

204988101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84051.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 204988101 is about 14317.4055261419. The cubic root of 204988101 is about 589.6254455016.

The spelling of 204988101 in words is "two hundred four million, nine hundred eighty-eight thousand, one hundred one".

Divisors: 1 3 821 2463 83227 249681 68329367 204988101