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22250808 = 2333313323
BaseRepresentation
bin101010011100…
…0010100111000
31112212110101000
41110320110320
521144011213
62112525000
7360062106
oct124702470
945773330
1022250808
11116183a8
127550760
1347c0a78
142d52c76
151e47c73
hex1538538

22250808 has 64 divisors (see below), whose sum is σ = 63820800. Its totient is φ = 7175520.

The previous prime is 22250797. The next prime is 22250849. The reversal of 22250808 is 80805222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5035 + ... + 8357.

It is an arithmetic number, because the mean of its divisors is an integer number (997200).

Almost surely, 222250808 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 22250808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31910400).

22250808 is an abundant number, since it is smaller than the sum of its proper divisors (41569992).

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

22250808 is a wasteful number, since it uses less digits than its factorization.

22250808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369 (or 3359 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 22250808 is about 4717.0762130795. The cubic root of 22250808 is about 281.2647210072.

The spelling of 22250808 in words is "twenty-two million, two hundred fifty thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 31 36 54 62 72 93 108 124 186 216 248 279 372 558 744 837 1116 1674 2232 3323 3348 6646 6696 9969 13292 19938 26584 29907 39876 59814 79752 89721 103013 119628 179442 206026 239256 309039 358884 412052 618078 717768 824104 927117 1236156 1854234 2472312 2781351 3708468 5562702 7416936 11125404 22250808