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13347893 = 131026761
BaseRepresentation
bin110010111010…
…110000110101
3221010010212102
4302322300311
511404113033
61154031445
7221312066
oct62726065
927103772
1013347893
117597519
124578585
1329c4680
141ab656d
151289de8
hexcbac35

13347893 has 4 divisors (see below), whose sum is σ = 14374668. Its totient is φ = 12321120.

The previous prime is 13347883. The next prime is 13347913. The reversal of 13347893 is 39874331.

13347893 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3972049 + 9375844 = 1993^2 + 3062^2 .

It is a cyclic number.

It is not a de Polignac number, because 13347893 - 24 = 13347877 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 (13347833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513368 + ... + 513393.

It is an arithmetic number, because the mean of its divisors is an integer number (3593667).

Almost surely, 213347893 is an apocalyptic number.

13347893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13347893 is a deficient number, since it is larger than the sum of its proper divisors (1026775).

13347893 is a wasteful number, since it uses less digits than its factorization.

13347893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026774.

The product of its digits is 54432, while the sum is 38.

The square root of 13347893 is about 3653.4768372059. The cubic root of 13347893 is about 237.2125008697.

The spelling of 13347893 in words is "thirteen million, three hundred forty-seven thousand, eight hundred ninety-three".

Divisors: 1 13 1026761 13347893