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13528245 = 353147619
BaseRepresentation
bin110011100110…
…110010110101
3221110022021010
4303212302311
511430400440
61201542433
7222662643
oct63466265
927408233
1013528245
1176aaa75
124644a19
132a587a3
141b22193
1512c3580
hexce6cb5

13528245 has 32 divisors (see below), whose sum is σ = 22855680. Its totient is φ = 6822720.

The previous prime is 13528211. The next prime is 13528259. The reversal of 13528245 is 54282531.

13528245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13528245 - 28 = 13527989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21546 + ... + 22164.

It is an arithmetic number, because the mean of its divisors is an integer number (714240).

Almost surely, 213528245 is an apocalyptic number.

13528245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13528245 is a deficient number, since it is larger than the sum of its proper divisors (9327435).

13528245 is a wasteful number, since it uses less digits than its factorization.

13528245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705.

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

The square root of 13528245 is about 3678.0762634834. The cubic root of 13528245 is about 238.2761019062.

The spelling of 13528245 in words is "thirteen million, five hundred twenty-eight thousand, two hundred forty-five".

Divisors: 1 3 5 15 31 47 93 141 155 235 465 619 705 1457 1857 3095 4371 7285 9285 19189 21855 29093 57567 87279 95945 145465 287835 436395 901883 2705649 4509415 13528245