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13211412 = 2232234937
BaseRepresentation
bin110010011001…
…011100010100
3220212012122120
4302121130110
511340231122
61151055540
7220203144
oct62313424
926765576
1013211412
117503a25
1245115b0
132977506
141a7c924
15125e75c
hexc99714

13211412 has 24 divisors (see below), whose sum is σ = 30971136. Its totient is φ = 4383168.

The previous prime is 13211399. The next prime is 13211423. The reversal of 13211412 is 21411231.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13211391 and 13211400.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 208 + ... + 5144.

It is an arithmetic number, because the mean of its divisors is an integer number (1290464).

Almost surely, 213211412 is an apocalyptic number.

13211412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13211412 is an abundant number, since it is smaller than the sum of its proper divisors (17759724).

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

13211412 is a wasteful number, since it uses less digits than its factorization.

13211412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167 (or 5165 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 13211412 is about 3634.7506104271. The cubic root of 13211412 is about 236.4012373926.

Adding to 13211412 its reverse (21411231), we get a palindrome (34622643).

The spelling of 13211412 in words is "thirteen million, two hundred eleven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 223 446 669 892 1338 2676 4937 9874 14811 19748 29622 59244 1100951 2201902 3302853 4403804 6605706 13211412