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6481025 = 52397653
BaseRepresentation
bin11000101110010010000001
3110012021021222
4120232102001
53124343100
6350524425
7106042055
oct30562201
913167258
106481025
113727321
122206715
13145bc35
14c09c65
15880485
hex62e481

6481025 has 12 divisors (see below), whose sum is σ = 8069052. Its totient is φ = 5163840.

The previous prime is 6481021. The next prime is 6481037. The reversal of 6481025 is 5201846.

It can be written as a sum of positive squares in 6 ways, for example, as 246016 + 6235009 = 496^2 + 2497^2 .

It is not a de Polignac number, because 6481025 - 22 = 6481021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6480985 and 6481003.

It is not an unprimeable number, because it can be changed into a prime (6481021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9599 + ... + 10251.

It is an arithmetic number, because the mean of its divisors is an integer number (672421).

Almost surely, 26481025 is an apocalyptic number.

It is an amenable number.

6481025 is a deficient number, since it is larger than the sum of its proper divisors (1588027).

6481025 is a wasteful number, since it uses less digits than its factorization.

6481025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 6481025 is about 2545.7857333248. The cubic root of 6481025 is about 186.4437798184.

The spelling of 6481025 in words is "six million, four hundred eighty-one thousand, twenty-five".

Divisors: 1 5 25 397 653 1985 3265 9925 16325 259241 1296205 6481025