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28026200 = 2352178243
BaseRepresentation
bin110101011101…
…0010101011000
31221201212201102
41222322111120
524133314300
62440410532
7460135016
oct152722530
957655642
1028026200
1114902554
129476a48
135a63767
143a178b6
1526d90d5
hex1aba558

28026200 has 48 divisors (see below), whose sum is σ = 69002280. Its totient is φ = 10549760.

The previous prime is 28026191. The next prime is 28026223. The reversal of 28026200 is 262082.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722 + ... + 7521.

Almost surely, 228026200 is an apocalyptic number.

28026200 is a gapful number since it is divisible by the number (20) 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 28026200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34501140).

28026200 is an abundant number, since it is smaller than the sum of its proper divisors (40976080).

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

28026200 is a wasteful number, since it uses less digits than its factorization.

28026200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276 (or 8267 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 28026200 is about 5293.9777105689. The cubic root of 28026200 is about 303.7535803176.

Adding to 28026200 its reverse (262082), we get a palindrome (28288282).

The spelling of 28026200 in words is "twenty-eight million, twenty-six thousand, two hundred".

Divisors: 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 136 170 200 340 425 680 850 1700 3400 8243 16486 32972 41215 65944 82430 140131 164860 206075 280262 329720 412150 560524 700655 824300 1121048 1401310 1648600 2802620 3503275 5605240 7006550 14013100 28026200