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6491201 = 19933257
BaseRepresentation
bin11000110000110001000001
3110012210020212
4120300301001
53130204301
6351043505
7106113533
oct30606101
913183225
106491201
113733a32
122210595
131463762
14c0d853
158834bb
hex630c41

6491201 has 4 divisors (see below), whose sum is σ = 6496452. Its totient is φ = 6485952.

The previous prime is 6491189. The next prime is 6491207. The reversal of 6491201 is 1021946.

It is a happy number.

6491201 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5180176 + 1311025 = 2276^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 6491201 - 26 = 6491137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6491207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365 + ... + 3621.

It is an arithmetic number, because the mean of its divisors is an integer number (1624113).

Almost surely, 26491201 is an apocalyptic number.

It is an amenable number.

6491201 is a deficient number, since it is larger than the sum of its proper divisors (5251).

6491201 is a wasteful number, since it uses less digits than its factorization.

6491201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 6491201 is about 2547.7835465361. The cubic root of 6491201 is about 186.5413086196.

The spelling of 6491201 in words is "six million, four hundred ninety-one thousand, two hundred one".

Divisors: 1 1993 3257 6491201