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13493286 = 2321395393
BaseRepresentation
bin110011011110…
…010000100110
3221101112022100
4303132100212
511423241121
61201112530
7222456012
oct63362046
927345270
1013493286
117686784
124628746
132a458c1
141b13542
1512b8026
hexcde426

13493286 has 24 divisors (see below), whose sum is σ = 29451240. Its totient is φ = 4464576.

The previous prime is 13493281. The next prime is 13493299. The reversal of 13493286 is 68239431.

13493286 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13493286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13493281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (1227135).

Almost surely, 213493286 is an apocalyptic number.

13493286 is an abundant number, since it is smaller than the sum of its proper divisors (15957954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13493286 is a wasteful number, since it uses less digits than its factorization.

13493286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540 (or 5537 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 13493286 is about 3673.3208408741. The cubic root of 13493286 is about 238.0706778768.

The spelling of 13493286 in words is "thirteen million, four hundred ninety-three thousand, two hundred eighty-six".

Divisors: 1 2 3 6 9 18 139 278 417 834 1251 2502 5393 10786 16179 32358 48537 97074 749627 1499254 2248881 4497762 6746643 13493286