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1028028006 = 23257112667
BaseRepresentation
bin111101010001100…
…111011001100110
32122122102020022100
4331101213121212
54101133344011
6250002112530
734322044125
oct7521473146
92578366270
101028028006
11488327725
1224834b746
13134ca16c5
149a765abc
15603bad56
hex3d467666

1028028006 has 12 divisors (see below), whose sum is σ = 2227394052. Its totient is φ = 342675996.

The previous prime is 1028027999. The next prime is 1028028031. The reversal of 1028028006 is 6008208201.

It is a super-2 number, since 2×10280280062 = 2113683162240672072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28556316 + ... + 28556351.

It is an arithmetic number, because the mean of its divisors is an integer number (185616171).

Almost surely, 21028028006 is an apocalyptic number.

1028028006 is an abundant number, since it is smaller than the sum of its proper divisors (1199366046).

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

1028028006 is a wasteful number, since it uses less digits than its factorization.

1028028006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57112675 (or 57112672 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1028028006 is about 32062.8758223588. The cubic root of 1028028006 is about 1009.2567174557.

The spelling of 1028028006 in words is "one billion, twenty-eight million, twenty-eight thousand, six".

Divisors: 1 2 3 6 9 18 57112667 114225334 171338001 342676002 514014003 1028028006