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8330028 = 2237131757
BaseRepresentation
bin11111110001101100101100
3120200012122120
4133301230230
54113030103
6454312540
7130542540
oct37615454
916605576
108330028
11477a523
122958750
131958715
14116ba20
15ae8253
hex7f1b2c

8330028 has 48 divisors (see below), whose sum is σ = 22412544. Its totient is φ = 2358720.

The previous prime is 8330027. The next prime is 8330039. The reversal of 8330028 is 8200338.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8330027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10626 + ... + 11382.

It is an arithmetic number, because the mean of its divisors is an integer number (466928).

Almost surely, 28330028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8330028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11206272).

8330028 is an abundant number, since it is smaller than the sum of its proper divisors (14082516).

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

8330028 is a wasteful number, since it uses less digits than its factorization.

8330028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 8330028 is about 2886.1787886408. The cubic root of 8330028 is about 202.7132580344.

The spelling of 8330028 in words is "eight million, three hundred thirty thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 131 262 393 524 757 786 917 1514 1572 1834 2271 2751 3028 3668 4542 5299 5502 9084 10598 11004 15897 21196 31794 63588 99167 198334 297501 396668 595002 694169 1190004 1388338 2082507 2776676 4165014 8330028