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6514749 = 3480429
BaseRepresentation
bin11000110110100000111101
3110020222120000
4120312200331
53131432444
6351344513
7106242303
oct30664075
913228500
106514749
11374a69a
122222139
1314713a7
14c18273
1588a469
hex63683d

6514749 has 10 divisors (see below), whose sum is σ = 9732030. Its totient is φ = 4343112.

The previous prime is 6514699. The next prime is 6514751. The reversal of 6514749 is 9474156.

6514749 is digitally balanced in base 4, 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 only one way, i.e., 4173849 + 2340900 = 2043^2 + 1530^2 .

It is not a de Polignac number, because 6514749 - 213 = 6506557 is a prime.

6514749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6514759) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40134 + ... + 40295.

It is an arithmetic number, because the mean of its divisors is an integer number (973203).

Almost surely, 26514749 is an apocalyptic number.

It is an amenable number.

6514749 is a deficient number, since it is larger than the sum of its proper divisors (3217281).

6514749 is an equidigital number, since it uses as much as digits as its factorization.

6514749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80441 (or 80432 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 6514749 is about 2552.4006346967. The cubic root of 6514749 is about 186.7666071262.

The spelling of 6514749 in words is "six million, five hundred fourteen thousand, seven hundred forty-nine".

Divisors: 1 3 9 27 81 80429 241287 723861 2171583 6514749