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9008128 = 21019463
BaseRepresentation
bin100010010111…
…010000000000
3121221122211101
4202113100000
54301230003
6521024144
7136365523
oct42272000
917848741
109008128
1150a2a38
123025054
131b3526c
1412a6bba
15bce11d
hex897400

9008128 has 44 divisors (see below), whose sum is σ = 18996160. Its totient is φ = 4257792.

The previous prime is 9008123. The next prime is 9008141. The reversal of 9008128 is 8218009.

It is a super-2 number, since 2×90081282 = 162292740128768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9008096 and 9008105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9008123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19225 + ... + 19687.

Almost surely, 29008128 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 9008128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9498080).

9008128 is an abundant number, since it is smaller than the sum of its proper divisors (9988032).

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

9008128 is a wasteful number, since it uses less digits than its factorization.

9008128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 9008128 is about 3001.3543609511. The cubic root of 9008128 is about 208.0709816913.

It can be divided in two parts, 90081 and 28, that added together give a palindrome (90109).

The spelling of 9008128 in words is "nine million, eight thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 19 32 38 64 76 128 152 256 304 463 512 608 926 1024 1216 1852 2432 3704 4864 7408 8797 9728 14816 17594 19456 29632 35188 59264 70376 118528 140752 237056 281504 474112 563008 1126016 2252032 4504064 9008128