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6311149 = 132571889
BaseRepresentation
bin11000000100110011101101
3102212122021021
4120010303231
53103424044
6343134141
7104433565
oct30046355
912778237
106311149
113620729
122144351
1313cc810
14ba3da5
15849e84
hex604ced

6311149 has 8 divisors (see below), whose sum is σ = 6826680. Its totient is φ = 5799936.

The previous prime is 6311147. The next prime is 6311159. The reversal of 6311149 is 9411136.

It can be written as a sum of positive squares in 4 ways, for example, as 1550025 + 4761124 = 1245^2 + 2182^2 .

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 6311149 - 21 = 6311147 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 (6311147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2397 + ... + 4285.

It is an arithmetic number, because the mean of its divisors is an integer number (853335).

Almost surely, 26311149 is an apocalyptic number.

It is an amenable number.

6311149 is a deficient number, since it is larger than the sum of its proper divisors (515531).

6311149 is a wasteful number, since it uses less digits than its factorization.

6311149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its digits is 648, while the sum is 25.

The square root of 6311149 is about 2512.2000318446. The cubic root of 6311149 is about 184.8003592661.

The spelling of 6311149 in words is "six million, three hundred eleven thousand, one hundred forty-nine".

Divisors: 1 13 257 1889 3341 24557 485473 6311149