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13187630 = 2510091307
BaseRepresentation
bin110010010011…
…101000101110
3220211000000202
4302103220232
511334001010
61150353502
7220043621
oct62235056
926730022
1013187630
117498075
1244bb892
132969741
141a73db8
1512576a5
hexc93a2e

13187630 has 16 divisors (see below), whose sum is σ = 23779440. Its totient is φ = 5265792.

The previous prime is 13187591. The next prime is 13187633. The reversal of 13187630 is 3678131.

13187630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13187593 and 13187602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13187633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9437 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (1486215).

Almost surely, 213187630 is an apocalyptic number.

13187630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13187630 is a deficient number, since it is larger than the sum of its proper divisors (10591810).

13187630 is a wasteful number, since it uses less digits than its factorization.

13187630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 13187630 is about 3631.4776606775. The cubic root of 13187630 is about 236.2593027514.

The spelling of 13187630 in words is "thirteen million, one hundred eighty-seven thousand, six hundred thirty".

Divisors: 1 2 5 10 1009 1307 2018 2614 5045 6535 10090 13070 1318763 2637526 6593815 13187630