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6490235 = 51298047
BaseRepresentation
bin11000110000100001111011
3110012201221002
4120300201323
53130141420
6351035215
7106110653
oct30604173
913181832
106490235
113733234
12220bb0b
13146319b
14c0d363
15883075
hex63087b

6490235 has 4 divisors (see below), whose sum is σ = 7788288. Its totient is φ = 5192184.

The previous prime is 6490219. The next prime is 6490247. The reversal of 6490235 is 5320946.

6490235 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 an emirpimes, since its reverse is a distinct semiprime: 5320946 = 22660473.

It is a cyclic number.

It is not a de Polignac number, because 6490235 - 24 = 6490219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6490198 and 6490207.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 649019 + ... + 649028.

It is an arithmetic number, because the mean of its divisors is an integer number (1947072).

Almost surely, 26490235 is an apocalyptic number.

6490235 is a deficient number, since it is larger than the sum of its proper divisors (1298053).

6490235 is a wasteful number, since it uses less digits than its factorization.

6490235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298052.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 6490235 is about 2547.5939629384. The cubic root of 6490235 is about 186.5320546647.

The spelling of 6490235 in words is "six million, four hundred ninety thousand, two hundred thirty-five".

Divisors: 1 5 1298047 6490235