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204200149 = 5317412213
BaseRepresentation
bin11000010101111…
…01100011010101
3112020020102221111
430022331203111
5404233401044
632132415021
75026446466
oct1412754325
9466212844
10204200149
11a52a165a
1258477471
13333c7cba
141d196d6d
1512dd8b34
hexc2bd8d5

204200149 has 8 divisors (see below), whose sum is σ = 208266552. Its totient is φ = 200141760.

The previous prime is 204200147. The next prime is 204200159. The reversal of 204200149 is 941002402.

It can be written as a sum of positive squares in 4 ways, for example, as 43797924 + 160402225 = 6618^2 + 12665^2 .

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 204200149 - 21 = 204200147 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 (204200147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91167 + ... + 93379.

It is an arithmetic number, because the mean of its divisors is an integer number (26033319).

Almost surely, 2204200149 is an apocalyptic number.

It is an amenable number.

204200149 is a deficient number, since it is larger than the sum of its proper divisors (4066403).

204200149 is a wasteful number, since it uses less digits than its factorization.

204200149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 204200149 is about 14289.8617558044. The cubic root of 204200149 is about 588.8689900334.

The spelling of 204200149 in words is "two hundred four million, two hundred thousand, one hundred forty-nine".

Divisors: 1 53 1741 2213 92273 117289 3852833 204200149