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6479028 = 223419997
BaseRepresentation
bin11000101101110010110100
3110012011120000
4120231302310
53124312103
6350511300
7106033203
oct30556264
913164500
106479028
113725876
122205530
13145b05a
14c0923a
1587eaa3
hex62dcb4

6479028 has 30 divisors (see below), whose sum is σ = 16938306. Its totient is φ = 2159568.

The previous prime is 6479021. The next prime is 6479041. The reversal of 6479028 is 8209746.

6479028 is a `hidden beast` number, since 647 + 9 + 0 + 2 + 8 = 666.

6479028 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., 6260004 + 219024 = 2502^2 + 468^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 68 + 47 + 72 + 97 + 0 + 2 + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 6478983 and 6479001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6479021) 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, 9675 + ... + 10322.

Almost surely, 26479028 is an apocalyptic number.

It is an amenable number.

6479028 is an abundant number, since it is smaller than the sum of its proper divisors (10459278).

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

6479028 is a wasteful number, since it uses less digits than its factorization.

6479028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20013 (or 20002 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 6479028 is about 2545.3934862807. The cubic root of 6479028 is about 186.4246281936.

The spelling of 6479028 in words is "six million, four hundred seventy-nine thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 19997 39994 59991 79988 119982 179973 239964 359946 539919 719892 1079838 1619757 2159676 3239514 6479028