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22868505 = 3251146199
BaseRepresentation
bin101011100111…
…1001000011001
31121000211200200
41113033020121
521323243010
62134052413
7365244012
oct127171031
947024620
1022868505
11119aa4a0
1277aa109
134978c7a
143074009
15201acc0
hex15cf219

22868505 has 24 divisors (see below), whose sum is σ = 43243200. Its totient is φ = 11087520.

The previous prime is 22868477. The next prime is 22868513. The reversal of 22868505 is 50586822.

It is not a de Polignac number, because 22868505 - 26 = 22868441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22868505.

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 23 ways as a sum of consecutive naturals, for example, 22605 + ... + 23594.

It is an arithmetic number, because the mean of its divisors is an integer number (1801800).

Almost surely, 222868505 is an apocalyptic number.

It is an amenable number.

22868505 is a deficient number, since it is larger than the sum of its proper divisors (20374695).

22868505 is a wasteful number, since it uses less digits than its factorization.

22868505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46221 (or 46218 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 22868505 is about 4782.1025710455. The cubic root of 22868505 is about 283.8436991234.

The spelling of 22868505 in words is "twenty-two million, eight hundred sixty-eight thousand, five hundred five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 46199 138597 230995 415791 508189 692985 1524567 2078955 2540945 4573701 7622835 22868505