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13141493 = 17773029
BaseRepresentation
bin110010001000…
…010111110101
3220201122201222
4302020113311
511331011433
61145400125
7216462251
oct62102765
926648658
1013141493
117466442
124499045
132951741
141a61261
151248b98
hexc885f5

13141493 has 4 divisors (see below), whose sum is σ = 13914540. Its totient is φ = 12368448.

The previous prime is 13141481. The next prime is 13141501. The reversal of 13141493 is 39414131.

13141493 is digitally balanced in base 2, 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, and also an emirpimes, since its reverse is a distinct semiprime: 39414131 = 65959809.

It can be written as a sum of positive squares in 2 ways, for example, as 11242609 + 1898884 = 3353^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 13141493 - 210 = 13140469 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 (13146493) 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, 386498 + ... + 386531.

It is an arithmetic number, because the mean of its divisors is an integer number (3478635).

Almost surely, 213141493 is an apocalyptic number.

It is an amenable number.

13141493 is a deficient number, since it is larger than the sum of its proper divisors (773047).

13141493 is an equidigital number, since it uses as much as digits as its factorization.

13141493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773046.

The product of its digits is 1296, while the sum is 26.

The square root of 13141493 is about 3625.1197221609. The cubic root of 13141493 is about 235.9834626447.

The spelling of 13141493 in words is "thirteen million, one hundred forty-one thousand, four hundred ninety-three".

Divisors: 1 17 773029 13141493