Search a number
-
+
23022612 = 2232639517
BaseRepresentation
bin101011111010…
…0110000010100
31121022200002100
41113310300110
521343210422
62141242100
7366455214
oct127646024
947280070
1023022612
1111aa5258
127863330
134a01162
1430b4244
15204b7ac
hex15f4c14

23022612 has 18 divisors (see below), whose sum is σ = 58196138. Its totient is φ = 7674192.

The previous prime is 23022599. The next prime is 23022691. The reversal of 23022612 is 21622032.

23022612 is a `hidden beast` number, since 2 + 30 + 22 + 612 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16941456 + 6081156 = 4116^2 + 2466^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319723 + ... + 319794.

Almost surely, 223022612 is an apocalyptic number.

It is an amenable number.

23022612 is an abundant number, since it is smaller than the sum of its proper divisors (35173526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23022612 is a wasteful number, since it uses less digits than its factorization.

23022612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639527 (or 639522 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23022612 is about 4798.1884081391. The cubic root of 23022612 is about 284.4798638664.

Adding to 23022612 its reverse (21622032), we get a palindrome (44644644).

The spelling of 23022612 in words is "twenty-three million, twenty-two thousand, six hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 639517 1279034 1918551 2558068 3837102 5755653 7674204 11511306 23022612