Search a number
-
+
22145044 = 2223240707
BaseRepresentation
bin101010001111…
…0100000010100
31112200002021211
41110132200110
521132120134
62110351204
7356141545
oct124364024
945602254
1022145044
1111555999
1274bb504
13478489c
142d264cc
151e26764
hex151e814

22145044 has 12 divisors (see below), whose sum is σ = 40438944. Its totient is φ = 10591064.

The previous prime is 22145029. The next prime is 22145059. The reversal of 22145044 is 44054122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22145029) and next prime (22145059).

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120262 + ... + 120445.

It is an arithmetic number, because the mean of its divisors is an integer number (3369912).

Almost surely, 222145044 is an apocalyptic number.

It is an amenable number.

22145044 is a deficient number, since it is larger than the sum of its proper divisors (18293900).

22145044 is a wasteful number, since it uses less digits than its factorization.

22145044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240734 (or 240732 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 22145044 is about 4705.8521013734. The cubic root of 22145044 is about 280.8183710786.

Adding to 22145044 its reverse (44054122), we get a palindrome (66199166).

The spelling of 22145044 in words is "twenty-two million, one hundred forty-five thousand, forty-four".

Divisors: 1 2 4 23 46 92 240707 481414 962828 5536261 11072522 22145044