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22450148 = 227801791
BaseRepresentation
bin101010110100…
…0111111100100
31120020120210222
41111220333210
521221401043
62121103512
7361552220
oct125507744
946216728
1022450148
1111744146
127627b98
134860716
142da5780
151e86d68
hex1568fe4

22450148 has 12 divisors (see below), whose sum is σ = 44900352. Its totient is φ = 9621480.

The previous prime is 22450133. The next prime is 22450151. The reversal of 22450148 is 84105422.

It is a happy number.

22450148 is an admirable 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, 400868 + ... + 400923.

It is an arithmetic number, because the mean of its divisors is an integer number (3741696).

Almost surely, 222450148 is an apocalyptic number.

22450148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22450148 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.

22450148 is a wasteful number, since it uses less digits than its factorization.

22450148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801802 (or 801800 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 22450148 is about 4738.1587140998. The cubic root of 22450148 is about 282.1021543622.

The spelling of 22450148 in words is "twenty-two million, four hundred fifty thousand, one hundred forty-eight".

Divisors: 1 2 4 7 14 28 801791 1603582 3207164 5612537 11225074 22450148