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13071324 = 2237612551
BaseRepresentation
bin110001110111…
…001111011100
3220121002111010
4301313033130
511321240244
61144055220
7216050550
oct61671734
926532433
1013071324
117418752
124464510
132928816
141a43860
151232eb9
hexc773dc

13071324 has 48 divisors (see below), whose sum is σ = 35442176. Its totient is φ = 3672000.

The previous prime is 13071301. The next prime is 13071329. The reversal of 13071324 is 42317031.

It is a super-2 number, since 2×130713242 = 341719022225952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 13071324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13071329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3849 + ... + 6399.

Almost surely, 213071324 is an apocalyptic number.

13071324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13071324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17721088).

13071324 is an abundant number, since it is smaller than the sum of its proper divisors (22370852).

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

13071324 is a wasteful number, since it uses less digits than its factorization.

13071324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626 (or 2624 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13071324 is about 3615.4286052970. The cubic root of 13071324 is about 235.5627016476.

Adding to 13071324 its reverse (42317031), we get a palindrome (55388355).

The spelling of 13071324 in words is "thirteen million, seventy-one thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 61 84 122 183 244 366 427 732 854 1281 1708 2551 2562 5102 5124 7653 10204 15306 17857 30612 35714 53571 71428 107142 155611 214284 311222 466833 622444 933666 1089277 1867332 2178554 3267831 4357108 6535662 13071324