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8128285006 = 2191911119907
BaseRepresentation
bin1111001000111101…
…11100100101001110
3202222110210122211211
413210132330211032
5113121320110011
63422321205034
7405266165632
oct74436744516
922873718754
108128285006
1134a1228916
1216aa19077a
139c6cab0ca
1457173cdc2
153288dab21
hex1e47bc94e

8128285006 has 16 divisors (see below), whose sum is σ = 12901340160. Its totient is φ = 3830078520.

The previous prime is 8128284929. The next prime is 8128285007. The reversal of 8128285006 is 6005828218.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8128285006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128285007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552696 + ... + 567211.

It is an arithmetic number, because the mean of its divisors is an integer number (806333760).

Almost surely, 28128285006 is an apocalyptic number.

8128285006 is a deficient number, since it is larger than the sum of its proper divisors (4773055154).

8128285006 is a wasteful number, since it uses less digits than its factorization.

8128285006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120119.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 8128285006 is about 90157.0019798795. The cubic root of 8128285006 is about 2010.6337783426.

The spelling of 8128285006 in words is "eight billion, one hundred twenty-eight million, two hundred eighty-five thousand, six".

Divisors: 1 2 19 38 191 382 3629 7258 1119907 2239814 21278233 42556466 213902237 427804474 4064142503 8128285006