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6149989 = 43891607
BaseRepresentation
bin10111011101011101100101
3102120110012101
4113131131211
53033244424
6335452101
7103162666
oct27353545
912513171
106149989
11352063a
122087031
131374361
14b6136d
15817344
hex5dd765

6149989 has 8 divisors (see below), whose sum is σ = 6367680. Its totient is φ = 5935776.

The previous prime is 6149987. The next prime is 6150007. The reversal of 6149989 is 9899416.

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

It is a cyclic number.

It is not a de Polignac number, because 6149989 - 21 = 6149987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6149981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3024 + ... + 4630.

It is an arithmetic number, because the mean of its divisors is an integer number (795960).

Almost surely, 26149989 is an apocalyptic number.

It is an amenable number.

6149989 is a deficient number, since it is larger than the sum of its proper divisors (217691).

6149989 is a wasteful number, since it uses less digits than its factorization.

6149989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its digits is 139968, while the sum is 46.

The square root of 6149989 is about 2479.9171357124. The cubic root of 6149989 is about 183.2137707115.

The spelling of 6149989 in words is "six million, one hundred forty-nine thousand, nine hundred eighty-nine".

Divisors: 1 43 89 1607 3827 69101 143023 6149989