Search a number
-
+
23053120 = 265611181
BaseRepresentation
bin101011111110…
…0001101000000
31121101012221021
41113330031000
521400144440
62142035224
7366643156
oct127741500
947335837
1023053120
1112016172
127878b14
134a11ccc
1430c13d6
15205584a
hex15fc340

23053120 has 56 divisors (see below), whose sum is σ = 55842408. Its totient is φ = 9062400.

The previous prime is 23053103. The next prime is 23053141. The reversal of 23053120 is 2135032.

It can be written as a sum of positive squares in 4 ways, for example, as 1597696 + 21455424 = 1264^2 + 4632^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23053094 and 23053103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18930 + ... + 20110.

Almost surely, 223053120 is an apocalyptic number.

23053120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23053120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27921204).

23053120 is an abundant number, since it is smaller than the sum of its proper divisors (32789288).

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

23053120 is a wasteful number, since it uses less digits than its factorization.

23053120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 23053120 is about 4801.3664721619. The cubic root of 23053120 is about 284.6054661937.

Adding to 23053120 its reverse (2135032), we get a palindrome (25188152).

The spelling of 23053120 in words is "twenty-three million, fifty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 61 64 80 122 160 244 305 320 488 610 976 1181 1220 1952 2362 2440 3904 4724 4880 5905 9448 9760 11810 18896 19520 23620 37792 47240 72041 75584 94480 144082 188960 288164 360205 377920 576328 720410 1152656 1440820 2305312 2881640 4610624 5763280 11526560 23053120