Search a number
-
+
22107634 = 211053817
BaseRepresentation
bin101010001010…
…1010111110010
31112121011222021
41110111113302
521124421014
62105502054
7355624513
oct124252762
945534867
1022107634
111152a87a
1274a192a
134770853
142d16a0a
151e1a624
hex15155f2

22107634 has 4 divisors (see below), whose sum is σ = 33161454. Its totient is φ = 11053816.

The previous prime is 22107607. The next prime is 22107637. The reversal of 22107634 is 43670122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43670122 = 221835061.

It can be written as a sum of positive squares in only one way, i.e., 16362025 + 5745609 = 4045^2 + 2397^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22107599 and 22107608.

It is not an unprimeable number, because it can be changed into a prime (22107637) by changing a digit.

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 as a sum of consecutive naturals, namely, 5526907 + ... + 5526910.

Almost surely, 222107634 is an apocalyptic number.

22107634 is a deficient number, since it is larger than the sum of its proper divisors (11053820).

22107634 is a wasteful number, since it uses less digits than its factorization.

22107634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11053819.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 22107634 is about 4701.8755832114. The cubic root of 22107634 is about 280.6601515318.

Adding to 22107634 its reverse (43670122), we get a palindrome (65777756).

The spelling of 22107634 in words is "twenty-two million, one hundred seven thousand, six hundred thirty-four".

Divisors: 1 2 11053817 22107634