Search a number
-
+
22281054 = 2313812689
BaseRepresentation
bin101010011111…
…1101101011110
31112220222212020
41110333231132
521200443204
62113321010
7360246225
oct124775536
945828766
1022281054
11116390a4
127566166
134801773
142d5dcbc
151e51bd9
hex153fb5e

22281054 has 16 divisors (see below), whose sum is σ = 44610960. Its totient is φ = 7418880.

The previous prime is 22281029. The next prime is 22281071. The reversal of 22281054 is 45018222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6942 + ... + 9630.

It is an arithmetic number, because the mean of its divisors is an integer number (2788185).

Almost surely, 222281054 is an apocalyptic number.

22281054 is an abundant number, since it is smaller than the sum of its proper divisors (22329906).

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

22281054 is a wasteful number, since it uses less digits than its factorization.

22281054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 22281054 is about 4720.2811356952. The cubic root of 22281054 is about 281.3921063591.

Adding to 22281054 its reverse (45018222), we get a palindrome (67299276).

The spelling of 22281054 in words is "twenty-two million, two hundred eighty-one thousand, fifty-four".

Divisors: 1 2 3 6 1381 2689 2762 4143 5378 8067 8286 16134 3713509 7427018 11140527 22281054