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13506125 = 53167647
BaseRepresentation
bin110011100001…
…011001001101
3221102011220212
4303201121031
511424144000
61201252205
7222541313
oct63413115
927364825
1013506125
117695396
124634065
132a4b6b9
141b180b3
1512bbc35
hexce164d

13506125 has 16 divisors (see below), whose sum is σ = 16982784. Its totient is φ = 10723600.

The previous prime is 13506113. The next prime is 13506127. The reversal of 13506125 is 52160531.

13506125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-13506125 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13506125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13506127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20552 + ... + 21198.

It is an arithmetic number, because the mean of its divisors is an integer number (1061424).

Almost surely, 213506125 is an apocalyptic number.

It is an amenable number.

13506125 is a deficient number, since it is larger than the sum of its proper divisors (3476659).

13506125 is an equidigital number, since it uses as much as digits as its factorization.

13506125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13506125 is about 3675.0680265813. The cubic root of 13506125 is about 238.1461628374.

Adding to 13506125 its reverse (52160531), we get a palindrome (65666656).

It can be divided in two parts, 13506 and 125, that added together give a palindrome (13631).

The spelling of 13506125 in words is "thirteen million, five hundred six thousand, one hundred twenty-five".

Divisors: 1 5 25 125 167 647 835 3235 4175 16175 20875 80875 108049 540245 2701225 13506125