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13002293 = 21416073
BaseRepresentation
bin110001100110…
…011000110101
3220110120210102
4301212120311
511312033133
61142403445
7215342363
oct61463065
926416712
1013002293
1173808a7
124430585
132903285
141a26633
15121c7e8
hexc66635

13002293 has 4 divisors (see below), whose sum is σ = 13010508. Its totient is φ = 12994080.

The previous prime is 13002287. The next prime is 13002307. The reversal of 13002293 is 39220031.

13002293 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39220031 = 103380777.

It can be written as a sum of positive squares in 2 ways, for example, as 12124324 + 877969 = 3482^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 13002293 - 28 = 13002037 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 (13002203) 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, 896 + ... + 5177.

It is an arithmetic number, because the mean of its divisors is an integer number (3252627).

Almost surely, 213002293 is an apocalyptic number.

It is an amenable number.

13002293 is a deficient number, since it is larger than the sum of its proper divisors (8215).

13002293 is an equidigital number, since it uses as much as digits as its factorization.

13002293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 13002293 is about 3605.8692433309. The cubic root of 13002293 is about 235.1472926015.

The spelling of 13002293 in words is "thirteen million, two thousand, two hundred ninety-three".

Divisors: 1 2141 6073 13002293