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13824525 = 35211131289
BaseRepresentation
bin110100101111…
…001000001101
3222000100200110
4310233020031
512014341100
61212150233
7225335511
oct64571015
928010613
1013824525
117892630
124768379
132b305c0
141b9c141
151331250
hexd2f20d

13824525 has 48 divisors (see below), whose sum is σ = 26873280. Its totient is φ = 6182400.

The previous prime is 13824511. The next prime is 13824529. The reversal of 13824525 is 52542831.

13824525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13824525 - 28 = 13824269 is a prime.

It is a super-2 number, since 2×138245252 = 382234982951250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13824492 and 13824501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13824529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10081 + ... + 11369.

It is an arithmetic number, because the mean of its divisors is an integer number (559860).

Almost surely, 213824525 is an apocalyptic number.

13824525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13824525 is a deficient number, since it is larger than the sum of its proper divisors (13048755).

13824525 is a wasteful number, since it uses less digits than its factorization.

13824525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1321 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 13824525 is about 3718.1346129477. The cubic root of 13824525 is about 240.0030381560.

The spelling of 13824525 in words is "thirteen million, eight hundred twenty-four thousand, five hundred twenty-five".

Divisors: 1 3 5 11 13 15 25 33 39 55 65 75 143 165 195 275 325 429 715 825 975 1289 2145 3575 3867 6445 10725 14179 16757 19335 32225 42537 50271 70895 83785 96675 184327 212685 251355 354475 418925 552981 921635 1063425 1256775 2764905 4608175 13824525