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206750949 = 3120157383
BaseRepresentation
bin11000101001011…
…00010011100101
3112102001000222120
430110230103211
5410412012244
632303220153
75060232306
oct1424542345
9472030876
10206750949
11a6784059
12592a7659
1333aac052
141d65c7ad
151323e819
hexc52c4e5

206750949 has 8 divisors (see below), whose sum is σ = 275902272. Its totient is φ = 137716800.

The previous prime is 206750917. The next prime is 206750953. The reversal of 206750949 is 949057602.

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

It is not a de Polignac number, because 206750949 - 25 = 206750917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206750949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206750969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25089 + ... + 32294.

It is an arithmetic number, because the mean of its divisors is an integer number (34487784).

Almost surely, 2206750949 is an apocalyptic number.

It is an amenable number.

206750949 is a deficient number, since it is larger than the sum of its proper divisors (69151323).

206750949 is a wasteful number, since it uses less digits than its factorization.

206750949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58587.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 206750949 is about 14378.8368444739. The cubic root of 206750949 is about 591.3108353686.

The spelling of 206750949 in words is "two hundred six million, seven hundred fifty thousand, nine hundred forty-nine".

Divisors: 1 3 1201 3603 57383 172149 68916983 206750949