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13000093 = 65919727
BaseRepresentation
bin110001100101…
…110110011101
3220110110202221
4301211312131
511312000333
61142345341
7215333101
oct61456635
926413687
1013000093
11737a187
12442b251
132902282
141a25901
15121bd2d
hexc65d9d

13000093 has 4 divisors (see below), whose sum is σ = 13020480. Its totient is φ = 12979708.

The previous prime is 13000081. The next prime is 13000133. The reversal of 13000093 is 39000031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13000093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000993) 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, 9205 + ... + 10522.

It is an arithmetic number, because the mean of its divisors is an integer number (3255120).

Almost surely, 213000093 is an apocalyptic number.

It is an amenable number.

13000093 is a deficient number, since it is larger than the sum of its proper divisors (20387).

13000093 is an equidigital number, since it uses as much as digits as its factorization.

13000093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 13000093 is about 3605.5641722205. The cubic root of 13000093 is about 235.1340294736.

The spelling of 13000093 in words is "thirteen million, ninety-three", and thus it is an aban number and an uban number.

Divisors: 1 659 19727 13000093