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13125063 = 371135531
BaseRepresentation
bin110010000100…
…010111000111
3220200211012110
4302010113013
511330000223
61145152103
7216363330
oct62042707
926624173
1013125063
117455066
12448b633
132947113
141a59287
151243d93
hexc845c7

13125063 has 16 divisors (see below), whose sum is σ = 20180736. Its totient is φ = 7432320.

The previous prime is 13125061. The next prime is 13125083. The reversal of 13125063 is 36052131.

13125063 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13125063 - 21 = 13125061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125061) 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 15 ways as a sum of consecutive naturals, for example, 393 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (1261296).

Almost surely, 213125063 is an apocalyptic number.

13125063 is a deficient number, since it is larger than the sum of its proper divisors (7055673).

13125063 is a wasteful number, since it uses less digits than its factorization.

13125063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5654.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13125063 is about 3622.8528813630. The cubic root of 13125063 is about 235.8850764307.

Adding to 13125063 its reverse (36052131), we get a palindrome (49177194).

The spelling of 13125063 in words is "thirteen million, one hundred twenty-five thousand, sixty-three".

Divisors: 1 3 7 21 113 339 791 2373 5531 16593 38717 116151 625003 1875009 4375021 13125063