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28226796 = 22313237867
BaseRepresentation
bin110101110101…
…1010011101100
31222010001212220
41223223103230
524211224141
62444555340
7461631603
oct153532354
958101786
1028226796
1114a2a234
129552b50
135b03b60
143a6aa3a
152728766
hex1aeb4ec

28226796 has 48 divisors (see below), whose sum is σ = 74022144. Its totient is φ = 8306496.

The previous prime is 28226789. The next prime is 28226797. The reversal of 28226796 is 69762282.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28226797) 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, 346 + ... + 7521.

It is an arithmetic number, because the mean of its divisors is an integer number (1542128).

Almost surely, 228226796 is an apocalyptic number.

28226796 is a gapful number since it is divisible by the number (26) 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 28226796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37011072).

28226796 is an abundant number, since it is smaller than the sum of its proper divisors (45795348).

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

28226796 is a wasteful number, since it uses less digits than its factorization.

28226796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7910 (or 7908 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 28226796 is about 5312.8896092428. The cubic root of 28226796 is about 304.4765580623.

The spelling of 28226796 in words is "twenty-eight million, two hundred twenty-six thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 12 13 23 26 39 46 52 69 78 92 138 156 276 299 598 897 1196 1794 3588 7867 15734 23601 31468 47202 94404 102271 180941 204542 306813 361882 409084 542823 613626 723764 1085646 1227252 2171292 2352233 4704466 7056699 9408932 14113398 28226796