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22688341 = 131745257
BaseRepresentation
bin101011010001…
…1001001010101
31120200200112221
41112203021111
521302011331
62130142341
7363563524
oct126431125
946620487
1022688341
11118970a5
1277219b1
134914c70
1430284bb
151ed2711
hex15a3255

22688341 has 4 divisors (see below), whose sum is σ = 24433612. Its totient is φ = 20943072.

The previous prime is 22688329. The next prime is 22688371. The reversal of 22688341 is 14388622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5499025 + 17189316 = 2345^2 + 4146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22688341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22688297 and 22688306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22688321) 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, 872616 + ... + 872641.

It is an arithmetic number, because the mean of its divisors is an integer number (6108403).

Almost surely, 222688341 is an apocalyptic number.

It is an amenable number.

22688341 is a deficient number, since it is larger than the sum of its proper divisors (1745271).

22688341 is a wasteful number, since it uses less digits than its factorization.

22688341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745270.

The product of its digits is 18432, while the sum is 34.

The square root of 22688341 is about 4763.2280021011. The cubic root of 22688341 is about 283.0963349941.

It can be divided in two parts, 2268 and 8341, that added together give a square (10609 = 1032).

The spelling of 22688341 in words is "twenty-two million, six hundred eighty-eight thousand, three hundred forty-one".

Divisors: 1 13 1745257 22688341