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206949392 = 2413994949
BaseRepresentation
bin11000101010111…
…00110000010000
3112102102010012022
430111130300100
5410434340032
632311351012
75062016666
oct1425346020
9472363168
10206949392
11a68aa161
1259382468
1333b4b480
141d6b0c36
151327d512
hexc55cc10

206949392 has 20 divisors (see below), whose sum is σ = 431808300. Its totient is φ = 95515008.

The previous prime is 206949389. The next prime is 206949409. The reversal of 206949392 is 293949602.

206949392 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 107827456 + 99121936 = 10384^2 + 9956^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497267 + ... + 497682.

It is an arithmetic number, because the mean of its divisors is an integer number (21590415).

Almost surely, 2206949392 is an apocalyptic number.

It is an amenable number.

206949392 is an abundant number, since it is smaller than the sum of its proper divisors (224858908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206949392 is a wasteful number, since it uses less digits than its factorization.

206949392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994970 (or 994964 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 206949392 is about 14385.7357128511. The cubic root of 206949392 is about 591.4999581990.

The spelling of 206949392 in words is "two hundred six million, nine hundred forty-nine thousand, three hundred ninety-two".

Divisors: 1 2 4 8 13 16 26 52 104 208 994949 1989898 3979796 7959592 12934337 15919184 25868674 51737348 103474696 206949392