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13671112 = 2371389211
BaseRepresentation
bin110100001001…
…101011001000
3221201120020111
4310021223020
511444433422
61205004104
7224126320
oct64115310
927646214
1013671112
117798344
1246b3634
132aa8820
141b5c280
151300a77
hexd09ac8

13671112 has 64 divisors (see below), whose sum is σ = 32054400. Its totient is φ = 5322240.

The previous prime is 13671041. The next prime is 13671113. The reversal of 13671112 is 21117631.

It is a super-3 number, since 3×136711123 (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13671113) 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, 64687 + ... + 64897.

It is an arithmetic number, because the mean of its divisors is an integer number (500850).

Almost surely, 213671112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13671112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16027200).

13671112 is an abundant number, since it is smaller than the sum of its proper divisors (18383288).

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

13671112 is a wasteful number, since it uses less digits than its factorization.

13671112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 322 counting only the distinct ones).

The product of its digits is 252, while the sum is 22.

The square root of 13671112 is about 3697.4466865663. The cubic root of 13671112 is about 239.1119495612. Note that the first 3 decimals are identical.

Adding to 13671112 its reverse (21117631), we get a palindrome (34788743).

The spelling of 13671112 in words is "thirteen million, six hundred seventy-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 89 91 104 178 182 211 356 364 422 623 712 728 844 1157 1246 1477 1688 2314 2492 2743 2954 4628 4984 5486 5908 8099 9256 10972 11816 16198 18779 19201 21944 32396 37558 38402 64792 75116 76804 131453 150232 153608 244127 262906 488254 525812 976508 1051624 1708889 1953016 3417778 6835556 13671112