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13000063 = 22757269
BaseRepresentation
bin110001100101…
…110101111111
3220110110201211
4301211311333
511312000223
61142345251
7215333026
oct61456577
926413654
1013000063
11737a15a
12442b227
13290225b
141a258bd
15121bd0d
hexc65d7f

13000063 has 4 divisors (see below), whose sum is σ = 13057560. Its totient is φ = 12942568.

The previous prime is 13000049. The next prime is 13000069. The reversal of 13000063 is 36000031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36000031 = 293122867.

It is a cyclic number.

It is not a de Polignac number, because 13000063 - 213 = 12991871 is a prime.

It is a Duffinian number.

13000063 is a modest number, since divided by 63 gives 13 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28408 + ... + 28861.

It is an arithmetic number, because the mean of its divisors is an integer number (3264390).

Almost surely, 213000063 is an apocalyptic number.

13000063 is a deficient number, since it is larger than the sum of its proper divisors (57497).

13000063 is an equidigital number, since it uses as much as digits as its factorization.

13000063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57496.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 13000063 is about 3605.5600119815. The cubic root of 13000063 is about 235.1338486025.

Adding to 13000063 its reverse (36000031), we get a palindrome (49000094).

The spelling of 13000063 in words is "thirteen million, sixty-three", and thus it is an aban number and an uban number.

Divisors: 1 227 57269 13000063