Search a number
-
+
23040525 = 3521721063
BaseRepresentation
bin101011111100…
…1001000001101
31121100120122210
41113321020031
521344244100
62141501033
7366561354
oct127711015
947316583
1023040525
1112007762
127871779
134a09361
1430ba99b
152051c50
hex15f920d

23040525 has 36 divisors (see below), whose sum is σ = 40504352. Its totient is φ = 11554560.

The previous prime is 23040497. The next prime is 23040541. The reversal of 23040525 is 52504032.

23040525 = T246 + T247 + ... + T534.

It is not a de Polignac number, because 23040525 - 210 = 23039501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21144 + ... + 22206.

Almost surely, 223040525 is an apocalyptic number.

23040525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23040525 is a deficient number, since it is larger than the sum of its proper divisors (17463827).

23040525 is a wasteful number, since it uses less digits than its factorization.

23040525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 23040525 is about 4800.0546871885. The cubic root of 23040525 is about 284.5536256495.

Adding to 23040525 its reverse (52504032), we get a palindrome (75544557).

It can be divided in two parts, 230 and 40525, that added together give a triangular number (40755 = T285).

The spelling of 23040525 in words is "twenty-three million, forty thousand, five hundred twenty-five".

Divisors: 1 3 5 15 17 25 51 75 85 255 289 425 867 1063 1275 1445 3189 4335 5315 7225 15945 18071 21675 26575 54213 79725 90355 271065 307207 451775 921621 1355325 1536035 4608105 7680175 23040525