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6185990449 = 314334913297
BaseRepresentation
bin1011100001011011…
…01011100100110001
3120222010000212121101
411300231223210301
5100132103143244
62501455124401
7306203023402
oct56055534461
916863025541
106185990449
112694915201
121247813701
137777894a2
144297c59a9
152631260d4
hex170b6b931

6185990449 has 16 divisors (see below), whose sum is σ = 6553254400. Its totient is φ = 5830030080.

The previous prime is 6185990411. The next prime is 6185990467. The reversal of 6185990449 is 9440995816.

6185990449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6185990449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6185990449.

It is not an unprimeable number, because it can be changed into a prime (6185970449) 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 15 ways as a sum of consecutive naturals, for example, 458569 + ... + 471865.

It is an arithmetic number, because the mean of its divisors is an integer number (409578400).

Almost surely, 26185990449 is an apocalyptic number.

It is an amenable number.

6185990449 is a deficient number, since it is larger than the sum of its proper divisors (367263951).

6185990449 is a wasteful number, since it uses less digits than its factorization.

6185990449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 6185990449 is about 78651.0676914179. The cubic root of 6185990449 is about 1835.7058068350.

The spelling of 6185990449 in words is "six billion, one hundred eighty-five million, nine hundred ninety thousand, four hundred forty-nine".

Divisors: 1 31 43 349 1333 10819 13297 15007 412207 465217 571771 4640653 17724901 143860243 199548079 6185990449