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13025650 = 2521122153
BaseRepresentation
bin110001101100…
…000101110010
3220111202211111
4301230011302
511313310100
61143103534
7215500441
oct61540562
926452744
1013025650
117397400
124441baa
132910ab1
141a30d58
1512246ba
hexc6c172

13025650 has 36 divisors (see below), whose sum is σ = 26642826. Its totient is φ = 4734400.

The previous prime is 13025647. The next prime is 13025681. The reversal of 13025650 is 5652031.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6456681 + 6568969 = 2541^2 + 2563^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4974 + ... + 7126.

It is a vampire number, since it can be written as 21536050 (with its own digits).

Almost surely, 213025650 is an apocalyptic number.

13025650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13025650 is an abundant number, since it is smaller than the sum of its proper divisors (13617176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13025650 is a wasteful number, since it uses less digits than its factorization.

13025650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187 (or 2171 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13025650 is about 3609.1065376350. The cubic root of 13025650 is about 235.2880126480.

Adding to 13025650 its reverse (5652031), we get a palindrome (18677681).

The spelling of 13025650 in words is "thirteen million, twenty-five thousand, six hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 121 242 275 550 605 1210 2153 3025 4306 6050 10765 21530 23683 47366 53825 107650 118415 236830 260513 521026 592075 1184150 1302565 2605130 6512825 13025650