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13247950 = 252264959
BaseRepresentation
bin110010100010…
…010111001110
3220221001202211
4302202113032
511342413300
61151541034
7220414522
oct62422716
926831684
1013247950
117529421
12452a77a
13298b031
141a8bd82
15126a4ba
hexca25ce

13247950 has 12 divisors (see below), whose sum is σ = 24641280. Its totient is φ = 5299160.

The previous prime is 13247939. The next prime is 13247957. The reversal of 13247950 is 5974231.

13247950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247957) 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, 132430 + ... + 132529.

It is an arithmetic number, because the mean of its divisors is an integer number (2053440).

Almost surely, 213247950 is an apocalyptic number.

13247950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13247950 is a deficient number, since it is larger than the sum of its proper divisors (11393330).

13247950 is a wasteful number, since it uses less digits than its factorization.

13247950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264971 (or 264966 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 13247950 is about 3639.7733445917. The cubic root of 13247950 is about 236.6189703084.

The spelling of 13247950 in words is "thirteen million, two hundred forty-seven thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 264959 529918 1324795 2649590 6623975 13247950