Search a number
-
+
22804769 = 1317195431
BaseRepresentation
bin101011011111…
…1100100100001
31120220121021002
41112333210201
521314223034
62132441345
7364560131
oct126774441
946817232
1022804769
1111966619
127779255
134955c60
143058ac1
152006e7e
hex15bf921

22804769 has 16 divisors (see below), whose sum is σ = 27377280. Its totient is φ = 18766080.

The previous prime is 22804751. The next prime is 22804781. The reversal of 22804769 is 96740822.

It is a cyclic number.

It is not a de Polignac number, because 22804769 - 28 = 22804513 is a prime.

It is a super-2 number, since 2×228047692 = 1040114978286722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22804709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1484 + ... + 6914.

It is an arithmetic number, because the mean of its divisors is an integer number (1711080).

Almost surely, 222804769 is an apocalyptic number.

It is an amenable number.

22804769 is a deficient number, since it is larger than the sum of its proper divisors (4572511).

22804769 is a wasteful number, since it uses less digits than its factorization.

22804769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5480.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 22804769 is about 4775.4339069869. The cubic root of 22804769 is about 283.5797568577.

The spelling of 22804769 in words is "twenty-two million, eight hundred four thousand, seven hundred sixty-nine".

Divisors: 1 13 17 19 221 247 323 4199 5431 70603 92327 103189 1200251 1341457 1754213 22804769