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6472240 = 245174759
BaseRepresentation
bin11000101100001000110000
3110011211020121
4120230020300
53124102430
6350420024
7106004335
oct30541060
913154217
106472240
113720765
122201614
131457c38
14c0698c
1587ca7a
hex62c230

6472240 has 40 divisors (see below), whose sum is σ = 15936480. Its totient is φ = 2436096.

The previous prime is 6472237. The next prime is 6472247. The reversal of 6472240 is 422746.

6472240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6472247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020 + ... + 3739.

It is an arithmetic number, because the mean of its divisors is an integer number (398412).

Almost surely, 26472240 is an apocalyptic number.

It is an amenable number.

6472240 is an abundant number, since it is smaller than the sum of its proper divisors (9464240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6472240 is a wasteful number, since it uses less digits than its factorization.

6472240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789 (or 4783 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 6472240 is about 2544.0597477261. The cubic root of 6472240 is about 186.3595004941.

Adding to 6472240 its reverse (422746), we get a palindrome (6894986).

The spelling of 6472240 in words is "six million, four hundred seventy-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 4759 9518 19036 23795 38072 47590 76144 80903 95180 161806 190360 323612 380720 404515 647224 809030 1294448 1618060 3236120 6472240