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28036008 = 233271113389
BaseRepresentation
bin110101011110…
…0101110101000
31221202101011200
41222330232220
524134123013
62440524200
7460205430
oct152745650
957671150
1028036008
1114909960
129480660
135a68070
143a1b2c0
1526dbe73
hex1abcba8

28036008 has 192 divisors, whose sum is σ = 102211200. Its totient is φ = 6704640.

The previous prime is 28036003. The next prime is 28036013. The reversal of 28036008 is 80063082.

It is an interprime number because it is at equal distance from previous prime (28036003) and next prime (28036013).

It is not an unprimeable number, because it can be changed into a prime (28036003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71878 + ... + 72266.

It is an arithmetic number, because the mean of its divisors is an integer number (532350).

Almost surely, 228036008 is an apocalyptic number.

28036008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28036008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51105600).

28036008 is an abundant number, since it is smaller than the sum of its proper divisors (74175192).

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

28036008 is a wasteful number, since it uses less digits than its factorization.

28036008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28036008 is about 5294.9039651348. The cubic root of 28036008 is about 303.7890098758.

The spelling of 28036008 in words is "twenty-eight million, thirty-six thousand, eight".