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13493826293 = 13997077887
BaseRepresentation
bin11001001000100101…
…10111001011110101
31021211102000101210012
430210102313023311
5210113404420133
610110551310005
7655250426303
oct144422671365
937742011705
1013493826293
1157a4a05462
12274707b305
1313707a49cc
14920195273
1553e99ab48
hex3244b72f5

13493826293 has 4 divisors (see below), whose sum is σ = 13590904320. Its totient is φ = 13396748268.

The previous prime is 13493826263. The next prime is 13493826317. The reversal of 13493826293 is 39262839431.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39262839431 = 46218496611.

It is a cyclic number.

It is not a de Polignac number, because 13493826293 - 228 = 13225390837 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 (13493826223) 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, 48538805 + ... + 48539082.

It is an arithmetic number, because the mean of its divisors is an integer number (3397726080).

Almost surely, 213493826293 is an apocalyptic number.

It is an amenable number.

13493826293 is a deficient number, since it is larger than the sum of its proper divisors (97078027).

13493826293 is an equidigital number, since it uses as much as digits as its factorization.

13493826293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97078026.

The product of its digits is 1679616, while the sum is 50.

The spelling of 13493826293 in words is "thirteen billion, four hundred ninety-three million, eight hundred twenty-six thousand, two hundred ninety-three".

Divisors: 1 139 97077887 13493826293