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23243525 = 52929741
BaseRepresentation
bin101100010101…
…0101100000101
31121201220010022
41120222230011
521422243100
62150104525
7401365244
oct130525405
947656108
1023243525
1112136228
12794b145
134a7a886
14313095b
152091e85
hex162ab05

23243525 has 6 divisors (see below), whose sum is σ = 28822002. Its totient is φ = 18594800.

The previous prime is 23243497. The next prime is 23243543. The reversal of 23243525 is 52534232.

It can be written as a sum of positive squares in 3 ways, for example, as 1406596 + 21836929 = 1186^2 + 4673^2 .

It is not a de Polignac number, because 23243525 - 218 = 22981381 is a prime.

It is a super-2 number, since 2×232435252 = 1080522908851250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23243494 and 23243503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 464846 + ... + 464895.

It is an arithmetic number, because the mean of its divisors is an integer number (4803667).

Almost surely, 223243525 is an apocalyptic number.

23243525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23243525 is a deficient number, since it is larger than the sum of its proper divisors (5578477).

23243525 is an equidigital number, since it uses as much as digits as its factorization.

23243525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929751 (or 929746 counting only the distinct ones).

The product of its digits is 7200, while the sum is 26.

The square root of 23243525 is about 4821.1539075205. The cubic root of 23243525 is about 285.3868758459.

Adding to 23243525 its reverse (52534232), we get a palindrome (75777757).

The spelling of 23243525 in words is "twenty-three million, two hundred forty-three thousand, five hundred twenty-five".

Divisors: 1 5 25 929741 4648705 23243525