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206849313 = 3211101137151
BaseRepresentation
bin11000101010001…
…00010100100001
3112102020000220200
430111010110201
5410423134223
632305255413
75061122136
oct1425042441
9472200820
10206849313
11a6840a50
1259334569
1333b14a58
141d68658d
151325da43
hexc544521

206849313 has 48 divisors (see below), whose sum is σ = 333770112. Its totient is φ = 122400000.

The previous prime is 206849311. The next prime is 206849323. The reversal of 206849313 is 313948602.

It is not a de Polignac number, because 206849313 - 21 = 206849311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206849311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1369788 + ... + 1369938.

It is an arithmetic number, because the mean of its divisors is an integer number (6953544).

Almost surely, 2206849313 is an apocalyptic number.

It is an amenable number.

206849313 is a deficient number, since it is larger than the sum of its proper divisors (126920799).

206849313 is a wasteful number, since it uses less digits than its factorization.

206849313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 206849313 is about 14382.2568813104. The cubic root of 206849313 is about 591.4045946762.

The spelling of 206849313 in words is "two hundred six million, eight hundred forty-nine thousand, three hundred thirteen".

Divisors: 1 3 9 11 33 99 101 137 151 303 411 453 909 1111 1233 1359 1507 1661 3333 4521 4983 9999 13563 13837 14949 15251 20687 41511 45753 62061 124533 137259 152207 167761 186183 227557 456621 503283 682671 1369863 1509849 2048013 2089387 6268161 18804483 22983257 68949771 206849313