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13189250 = 25352757
BaseRepresentation
bin110010010100…
…000010000010
3220211002020202
4302110002002
511334024000
61150405202
7220051424
oct62240202
926732222
1013189250
117499308
124500802
13296a3b9
141a74814
151257dd5
hexc94082

13189250 has 16 divisors (see below), whose sum is σ = 24690744. Its totient is φ = 5275600.

The previous prime is 13189243. The next prime is 13189259. The reversal of 13189250 is 5298131.

It can be written as a sum of positive squares in 4 ways, for example, as 6599761 + 6589489 = 2569^2 + 2567^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13189259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26129 + ... + 26628.

Almost surely, 213189250 is an apocalyptic number.

13189250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13189250 is a deficient number, since it is larger than the sum of its proper divisors (11501494).

13189250 is an equidigital number, since it uses as much as digits as its factorization.

13189250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52774 (or 52764 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 13189250 is about 3631.7007035272. The cubic root of 13189250 is about 236.2689765745.

The spelling of 13189250 in words is "thirteen million, one hundred eighty-nine thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 52757 105514 263785 527570 1318925 2637850 6594625 13189250