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23085525 = 352317971
BaseRepresentation
bin101100000010…
…0000111010101
31121102212101110
41120010013111
521402214100
62142445233
7400136511
oct130040725
947385343
1023085525
1112038551
127893819
134a23998
1430cd141
152060250
hex16041d5

23085525 has 24 divisors (see below), whose sum is σ = 38327904. Its totient is φ = 12260800.

The previous prime is 23085523. The next prime is 23085529. The reversal of 23085525 is 52558032.

It is not a de Polignac number, because 23085525 - 21 = 23085523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23085492 and 23085501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23085523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23290 + ... + 24260.

It is an arithmetic number, because the mean of its divisors is an integer number (1596996).

Almost surely, 223085525 is an apocalyptic number.

23085525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23085525 is a deficient number, since it is larger than the sum of its proper divisors (15242379).

23085525 is a wasteful number, since it uses less digits than its factorization.

23085525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 23085525 is about 4804.7398472758. The cubic root of 23085525 is about 284.7387572216.

The spelling of 23085525 in words is "twenty-three million, eighty-five thousand, five hundred twenty-five".

Divisors: 1 3 5 15 25 75 317 951 971 1585 2913 4755 4855 7925 14565 23775 24275 72825 307807 923421 1539035 4617105 7695175 23085525