Search a number
-
+
22432230 = 2325281887
BaseRepresentation
bin101010110010…
…0100111100110
31120012200020100
41111210213212
521220312410
62120444530
7361446042
oct125444746
946180210
1022432230
1111731737
127619746
134855512
142d9d022
151e818c0
hex15649e6

22432230 has 48 divisors (see below), whose sum is σ = 58597344. Its totient is φ = 5953920.

The previous prime is 22432219. The next prime is 22432247. The reversal of 22432230 is 3223422.

22432230 is a `hidden beast` number, since 2 + 2 + 432 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 24847 + ... + 25733.

It is an arithmetic number, because the mean of its divisors is an integer number (1220778).

Almost surely, 222432230 is an apocalyptic number.

22432230 is an abundant number, since it is smaller than the sum of its proper divisors (36165114).

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

22432230 is a wasteful number, since it uses less digits than its factorization.

22432230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22432230 is about 4736.2675177823. The cubic root of 22432230 is about 282.0270835615.

Adding to 22432230 its reverse (3223422), we get a palindrome (25655652).

The spelling of 22432230 in words is "twenty-two million, four hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 281 562 843 887 1405 1686 1774 2529 2661 2810 4215 4435 5058 5322 7983 8430 8870 12645 13305 15966 25290 26610 39915 79830 249247 498494 747741 1246235 1495482 2243223 2492470 3738705 4486446 7477410 11216115 22432230