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22105148 = 2213795381
BaseRepresentation
bin101010001010…
…0110000111100
31112121001120012
41110110300330
521124331043
62105442352
7355614332
oct124246074
945531505
1022105148
1111528a1a
1274a03b8
13476c690
142d15b52
151e19a18
hex1514c3c

22105148 has 24 divisors (see below), whose sum is σ = 42194880. Its totient is φ = 10071360.

The previous prime is 22105147. The next prime is 22105159. The reversal of 22105148 is 84150122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22105147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1418 + ... + 6798.

It is an arithmetic number, because the mean of its divisors is an integer number (1758120).

Almost surely, 222105148 is an apocalyptic number.

It is an amenable number.

22105148 is a deficient number, since it is larger than the sum of its proper divisors (20089732).

22105148 is a wasteful number, since it uses less digits than its factorization.

22105148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477 (or 5475 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 22105148 is about 4701.6112131906. The cubic root of 22105148 is about 280.6496310740.

The spelling of 22105148 in words is "twenty-two million, one hundred five thousand, one hundred forty-eight".

Divisors: 1 2 4 13 26 52 79 158 316 1027 2054 4108 5381 10762 21524 69953 139906 279812 425099 850198 1700396 5526287 11052574 22105148