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13648384 = 29192361
BaseRepresentation
bin110100000100…
…001000000000
3221200102001201
4310010020000
511443222014
61204310544
7224003131
oct64041000
927612051
1013648384
117782262
1246a2454
132a9b389
141b53c88
1512e8e74
hexd04200

13648384 has 80 divisors (see below), whose sum is σ = 30444480. Its totient is φ = 6082560.

The previous prime is 13648333. The next prime is 13648391. The reversal of 13648384 is 48384631.

It is a super-2 number, since 2×136483842 = 372556771622912, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223714 + ... + 223774.

It is an arithmetic number, because the mean of its divisors is an integer number (380556).

Almost surely, 213648384 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 13648384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15222240).

13648384 is an abundant number, since it is smaller than the sum of its proper divisors (16796096).

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

13648384 is an equidigital number, since it uses as much as digits as its factorization.

13648384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 105 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 13648384 is about 3694.3719357964. The cubic root of 13648384 is about 238.9793694954.

The spelling of 13648384 in words is "thirteen million, six hundred forty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 19 23 32 38 46 61 64 76 92 122 128 152 184 244 256 304 368 437 488 512 608 736 874 976 1159 1216 1403 1472 1748 1952 2318 2432 2806 2944 3496 3904 4636 4864 5612 5888 6992 7808 9272 9728 11224 11776 13984 15616 18544 22448 26657 27968 31232 37088 44896 53314 55936 74176 89792 106628 111872 148352 179584 213256 223744 296704 359168 426512 593408 718336 853024 1706048 3412096 6824192 13648384