Search a number
-
+
23023044 = 223211471237
BaseRepresentation
bin101011111010…
…0110111000100
31121022200200100
41113310313010
521343214134
62141244100
7366456402
oct127646704
947280610
1023023044
1111aa5610
127863630
134a01405
1430b4472
15204b999
hex15f4dc4

23023044 has 72 divisors (see below), whose sum is σ = 64891008. Its totient is φ = 6822720.

The previous prime is 23023037. The next prime is 23023057. The reversal of 23023044 is 44032032.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17994 + ... + 19230.

It is an arithmetic number, because the mean of its divisors is an integer number (901264).

Almost surely, 223023044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23023044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32445504).

23023044 is an abundant number, since it is smaller than the sum of its proper divisors (41867964).

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

23023044 is a wasteful number, since it uses less digits than its factorization.

23023044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23023044 is about 4798.2334249180. The cubic root of 23023044 is about 284.4816431973.

Adding to 23023044 its reverse (44032032), we get a palindrome (67055076).

The spelling of 23023044 in words is "twenty-three million, twenty-three thousand, forty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 47 66 94 99 132 141 188 198 282 396 423 517 564 846 1034 1237 1551 1692 2068 2474 3102 3711 4653 4948 6204 7422 9306 11133 13607 14844 18612 22266 27214 40821 44532 54428 58139 81642 116278 122463 163284 174417 232556 244926 348834 489852 523251 639529 697668 1046502 1279058 1918587 2093004 2558116 3837174 5755761 7674348 11511522 23023044