Search a number
BaseRepresentation
bin110101111000…
…1011110110110
31222011100120120
41223301132312
524213031321
62445312410
7462065412
oct153613666
958140516
1028252086
1114a47235
129565706
135b12515
143a75d42
152730ec6
hex1af17b6

28252086 has 8 divisors (see below), whose sum is σ = 56504184. Its totient is φ = 9417360.

The previous prime is 28252057. The next prime is 28252117. The reversal of 28252086 is 68025282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2354335 + ... + 2354346.

It is an arithmetic number, because the mean of its divisors is an integer number (7063023).

Almost surely, 228252086 is an apocalyptic number.

28252086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28252086 is a wasteful number, since it uses less digits than its factorization.

28252086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708686.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28252086 is about 5315.2691371181. The cubic root of 28252086 is about 304.5674635694.

The spelling of 28252086 in words is "twenty-eight million, two hundred fifty-two thousand, eighty-six".

Divisors: 1 2 3 6 4708681 9417362 14126043 28252086