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13071390 = 235538221
BaseRepresentation
bin110001110111…
…010000011110
3220121002120120
4301313100132
511321241030
61144055410
7216051003
oct61672036
926532516
1013071390
117418802
124464566
132928867
141a438aa
151233010
hexc7741e

13071390 has 32 divisors (see below), whose sum is σ = 31967136. Its totient is φ = 3419520.

The previous prime is 13071371. The next prime is 13071413. The reversal of 13071390 is 9317031.

It is a super-2 number, since 2×130713902 = 341722473064200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13071390.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2521 + ... + 5700.

It is an arithmetic number, because the mean of its divisors is an integer number (998973).

Almost surely, 213071390 is an apocalyptic number.

13071390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13071390 is an abundant number, since it is smaller than the sum of its proper divisors (18895746).

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

13071390 is a wasteful number, since it uses less digits than its factorization.

13071390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8284.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 13071390 is about 3615.4377328340. The cubic root of 13071390 is about 235.5630981163.

The spelling of 13071390 in words is "thirteen million, seventy-one thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 1590 8221 16442 24663 41105 49326 82210 123315 246630 435713 871426 1307139 2178565 2614278 4357130 6535695 13071390