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13125340 = 225656267
BaseRepresentation
bin110010000100…
…011011011100
3220200211120201
4302010123130
511330002330
61145153244
7216364204
oct62043334
926624521
1013125340
117455298
12448b824
132947297
141a59404
151243eca
hexc846dc

13125340 has 12 divisors (see below), whose sum is σ = 27563256. Its totient is φ = 5250128.

The previous prime is 13125319. The next prime is 13125347. The reversal of 13125340 is 4352131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125347) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 328114 + ... + 328153.

It is an arithmetic number, because the mean of its divisors is an integer number (2296938).

Almost surely, 213125340 is an apocalyptic number.

13125340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13125340 is an abundant number, since it is smaller than the sum of its proper divisors (14437916).

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

13125340 is a wasteful number, since it uses less digits than its factorization.

13125340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656276 (or 656274 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 13125340 is about 3622.8911107015. The cubic root of 13125340 is about 235.8867358439.

Adding to 13125340 its reverse (4352131), we get a palindrome (17477471).

The spelling of 13125340 in words is "thirteen million, one hundred twenty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 656267 1312534 2625068 3281335 6562670 13125340