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13444008 = 2331783397
BaseRepresentation
bin110011010010…
…001110101000
3221022000201020
4303102032220
511420202013
61200052440
7222162234
oct63221650
927260636
1013444008
117652756
124604120
132a29346
141add5c4
1512a8623
hexcd23a8

13444008 has 64 divisors (see below), whose sum is σ = 36106560. Its totient is φ = 4156416.

The previous prime is 13444007. The next prime is 13444027. The reversal of 13444008 is 80044431.

It is a super-2 number, since 2×134440082 = 361482702208128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13444007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33666 + ... + 34062.

It is an arithmetic number, because the mean of its divisors is an integer number (564165).

Almost surely, 213444008 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 13444008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18053280).

13444008 is an abundant number, since it is smaller than the sum of its proper divisors (22662552).

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

13444008 is a wasteful number, since it uses less digits than its factorization.

13444008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 13444008 is about 3666.6071510321. The cubic root of 13444008 is about 237.7805099274.

Adding to 13444008 its reverse (80044431), we get a palindrome (93488439).

The spelling of 13444008 in words is "thirteen million, four hundred forty-four thousand, eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 83 102 136 166 204 249 332 397 408 498 664 794 996 1191 1411 1588 1992 2382 2822 3176 4233 4764 5644 6749 8466 9528 11288 13498 16932 20247 26996 32951 33864 40494 53992 65902 80988 98853 131804 161976 197706 263608 395412 560167 790824 1120334 1680501 2240668 3361002 4481336 6722004 13444008