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13948525 = 52896269
BaseRepresentation
bin110101001101…
…011001101101
3222020122210001
4311031121231
512032323100
61214544301
7226363153
oct65153155
928218701
1013948525
117967808
124808091
132b74b86
141bd13d3
151357d6a
hexd4d66d

13948525 has 12 divisors (see below), whose sum is σ = 17493300. Its totient is φ = 11031680.

The previous prime is 13948523. The next prime is 13948531. The reversal of 13948525 is 52584931.

It can be written as a sum of positive squares in 6 ways, for example, as 2128681 + 11819844 = 1459^2 + 3438^2 .

It is not a de Polignac number, because 13948525 - 21 = 13948523 is a prime.

It is a super-2 number, since 2×139485252 = 389122699351250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13948523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 910 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (1457775).

Almost surely, 213948525 is an apocalyptic number.

It is an amenable number.

13948525 is a deficient number, since it is larger than the sum of its proper divisors (3544775).

13948525 is an equidigital number, since it uses as much as digits as its factorization.

13948525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6368 (or 6363 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 13948525 is about 3734.7724160918. The cubic root of 13948525 is about 240.7184777645.

The spelling of 13948525 in words is "thirteen million, nine hundred forty-eight thousand, five hundred twenty-five".

Divisors: 1 5 25 89 445 2225 6269 31345 156725 557941 2789705 13948525