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13193825 = 52527753
BaseRepresentation
bin110010010101…
…001001100001
3220211022112012
4302111021201
511334200300
61150442305
7220100651
oct62251141
926738465
1013193825
1174a1797
124503395
13296c4c8
141a76361
151259435
hexc95261

13193825 has 6 divisors (see below), whose sum is σ = 16360374. Its totient is φ = 10555040.

The previous prime is 13193821. The next prime is 13193827. The reversal of 13193825 is 52839131.

It can be written as a sum of positive squares in 3 ways, for example, as 2401 + 13191424 = 49^2 + 3632^2 .

It is not a de Polignac number, because 13193825 - 22 = 13193821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13193791 and 13193800.

It is not an unprimeable number, because it can be changed into a prime (13193821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263852 + ... + 263901.

It is an arithmetic number, because the mean of its divisors is an integer number (2726729).

Almost surely, 213193825 is an apocalyptic number.

It is an amenable number.

13193825 is a deficient number, since it is larger than the sum of its proper divisors (3166549).

13193825 is an equidigital number, since it uses as much as digits as its factorization.

13193825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527763 (or 527758 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 13193825 is about 3632.3305191020. The cubic root of 13193825 is about 236.2962918909.

The spelling of 13193825 in words is "thirteen million, one hundred ninety-three thousand, eight hundred twenty-five".

Divisors: 1 5 25 527753 2638765 13193825