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13042425 = 3521115809
BaseRepresentation
bin110001110000…
…001011111001
3220112121211210
4301300023321
511314324200
61143313333
7215600364
oct61601371
926477753
1013042425
1173a8a70
12444b849
132918616
141a370db
151229650
hexc702f9

13042425 has 24 divisors (see below), whose sum is σ = 23525280. Its totient is φ = 6323200.

The previous prime is 13042423. The next prime is 13042429. The reversal of 13042425 is 52424031.

13042425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13042425 - 21 = 13042423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13042423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7080 + ... + 8729.

It is an arithmetic number, because the mean of its divisors is an integer number (980220).

Almost surely, 213042425 is an apocalyptic number.

13042425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13042425 is a deficient number, since it is larger than the sum of its proper divisors (10482855).

13042425 is a wasteful number, since it uses less digits than its factorization.

13042425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15833 (or 15828 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13042425 is about 3611.4297722647. The cubic root of 13042425 is about 235.3889740400.

Adding to 13042425 its reverse (52424031), we get a palindrome (65466456).

The spelling of 13042425 in words is "thirteen million, forty-two thousand, four hundred twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 165 275 825 15809 47427 79045 173899 237135 395225 521697 869495 1185675 2608485 4347475 13042425