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13118112 = 25357241
BaseRepresentation
bin110010000010…
…101010100000
3220200110200000
4302002222200
511324234422
61145100000
7216334140
oct62025240
926613600
1013118112
11744a917
124487600
132943bc7
141a56920
151241cac
hexc82aa0

13118112 has 144 divisors (see below), whose sum is σ = 44396352. Its totient is φ = 3732480.

The previous prime is 13118107. The next prime is 13118129. The reversal of 13118112 is 21181131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54312 + ... + 54552.

It is an arithmetic number, because the mean of its divisors is an integer number (308308).

Almost surely, 213118112 is an apocalyptic number.

13118112 is a gapful number since it is divisible by the number (12) 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 13118112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22198176).

13118112 is an abundant number, since it is smaller than the sum of its proper divisors (31278240).

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

13118112 is an equidigital number, since it uses as much as digits as its factorization.

13118112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 253 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

The square root of 13118112 is about 3621.8934274768. The cubic root of 13118112 is about 235.8434276986.

Adding to 13118112 its reverse (21181131), we get a palindrome (34299243).

It can be divided in two parts, 1 and 3118112, that added together give a palindrome (3118113).

The spelling of 13118112 in words is "thirteen million, one hundred eighteen thousand, one hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 72 81 84 96 108 112 126 144 162 168 189 216 224 241 243 252 288 324 336 378 432 482 486 504 567 648 672 723 756 864 964 972 1008 1134 1296 1446 1512 1687 1701 1928 1944 2016 2169 2268 2592 2892 3024 3374 3402 3856 3888 4338 4536 5061 5784 6048 6507 6748 6804 7712 7776 8676 9072 10122 11568 13014 13496 13608 15183 17352 18144 19521 20244 23136 26028 26992 27216 30366 34704 39042 40488 45549 52056 53984 54432 58563 60732 69408 78084 80976 91098 104112 117126 121464 136647 156168 161952 182196 208224 234252 242928 273294 312336 364392 409941 468504 485856 546588 624672 728784 819882 937008 1093176 1457568 1639764 1874016 2186352 3279528 4372704 6559056 13118112