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22864330 = 257331321
BaseRepresentation
bin101011100111…
…0000111001010
31121000121222001
41113032013022
521323124310
62134021214
7365225566
oct127160712
947017861
1022864330
11119a7345
1277a780a
1349770b8
1430726a6
15201993a
hex15ce1ca

22864330 has 16 divisors (see below), whose sum is σ = 41720904. Its totient is φ = 9020160.

The previous prime is 22864319. The next prime is 22864349. The reversal of 22864330 is 3346822.

It can be written as a sum of positive squares in 4 ways, for example, as 19280881 + 3583449 = 4391^2 + 1893^2 .

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 7 ways as a sum of consecutive naturals, for example, 14931 + ... + 16390.

Almost surely, 222864330 is an apocalyptic number.

22864330 is a deficient number, since it is larger than the sum of its proper divisors (18856574).

22864330 is a wasteful number, since it uses less digits than its factorization.

22864330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31401.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 22864330 is about 4781.6660276519. Note that the first 3 decimals coincide. The cubic root of 22864330 is about 283.8264247167.

The spelling of 22864330 in words is "twenty-two million, eight hundred sixty-four thousand, three hundred thirty".

Divisors: 1 2 5 10 73 146 365 730 31321 62642 156605 313210 2286433 4572866 11432165 22864330