Search a number
-
+
22357868 = 2213894831
BaseRepresentation
bin101010101001…
…0011101101100
31120001220020012
41111102131230
521210422433
62115112352
7361016201
oct125223554
946056205
1022357868
1111690885
1275a26b8
13482a710
142d7dca8
151e69848
hex155276c

22357868 has 24 divisors (see below), whose sum is σ = 42618240. Its totient is φ = 10200960.

The previous prime is 22357859. The next prime is 22357871. The reversal of 22357868 is 86875322.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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, 2213 + ... + 7043.

It is an arithmetic number, because the mean of its divisors is an integer number (1775760).

Almost surely, 222357868 is an apocalyptic number.

It is an amenable number.

22357868 is a deficient number, since it is larger than the sum of its proper divisors (20260372).

22357868 is a wasteful number, since it uses less digits than its factorization.

22357868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4937 (or 4935 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 22357868 is about 4728.4107266607. The cubic root of 22357868 is about 281.7151021748.

The spelling of 22357868 in words is "twenty-two million, three hundred fifty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 13 26 52 89 178 356 1157 2314 4628 4831 9662 19324 62803 125606 251212 429959 859918 1719836 5589467 11178934 22357868