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22100132 = 226538461
BaseRepresentation
bin101010001001…
…1100010100100
31112120210200102
41110103202210
521124201012
62105403232
7355563605
oct124234244
945523612
1022100132
111152517a
127499518
13476a302
142d13dac
151e182c2
hex15138a4

22100132 has 12 divisors (see below), whose sum is σ = 38739036. Its totient is φ = 11031840.

The previous prime is 22100131. The next prime is 22100147. The reversal of 22100132 is 23100122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12013156 + 10086976 = 3466^2 + 3176^2 .

It is not an unprimeable number, because it can be changed into a prime (22100131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1619 + ... + 6842.

It is an arithmetic number, because the mean of its divisors is an integer number (3228253).

Almost surely, 222100132 is an apocalyptic number.

It is an amenable number.

22100132 is a deficient number, since it is larger than the sum of its proper divisors (16638904).

22100132 is a wasteful number, since it uses less digits than its factorization.

22100132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9118 (or 9116 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 22100132 is about 4701.0777487721. The cubic root of 22100132 is about 280.6284015540.

Adding to 22100132 its reverse (23100122), we get a palindrome (45200254).

The spelling of 22100132 in words is "twenty-two million, one hundred thousand, one hundred thirty-two".

Divisors: 1 2 4 653 1306 2612 8461 16922 33844 5525033 11050066 22100132