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200489193 = 321512977
BaseRepresentation
bin10111111001100…
…11100011101001
3111222020220110200
423330303203221
5402311123233
631521102413
74653062412
oct1374634351
9458226420
10200489193
11a3197553
1257187a09
13326c8b78
141c8ac809
1512904313
hexbf338e9

200489193 has 18 divisors (see below), whose sum is σ = 291824442. Its totient is φ = 132638400.

The previous prime is 200489189. The next prime is 200489207. The reversal of 200489193 is 391984002.

It can be written as a sum of positive squares in only one way, i.e., 197205849 + 3283344 = 14043^2 + 1812^2 .

It is not a de Polignac number, because 200489193 - 22 = 200489189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200489153) 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 17 ways as a sum of consecutive naturals, for example, 204721 + ... + 205697.

It is an arithmetic number, because the mean of its divisors is an integer number (16212469).

Almost surely, 2200489193 is an apocalyptic number.

It is an amenable number.

200489193 is a deficient number, since it is larger than the sum of its proper divisors (91335249).

200489193 is an equidigital number, since it uses as much as digits as its factorization.

200489193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 200489193 is about 14159.4206449275. The cubic root of 200489193 is about 585.2799624253.

It can be divided in two parts, 20048 and 9193, that added together give a square (29241 = 1712).

The spelling of 200489193 in words is "two hundred million, four hundred eighty-nine thousand, one hundred ninety-three".

Divisors: 1 3 9 151 453 977 1359 2931 8793 22801 68403 147527 205209 442581 1327743 22276577 66829731 200489193