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13003412 = 223250853
BaseRepresentation
bin110001100110…
…101010010100
3220110122022212
4301212222110
511312102122
61142412552
7215345552
oct61465224
926418285
1013003412
117381724
124431158
132903936
141a26bd2
15121cce2
hexc66a94

13003412 has 6 divisors (see below), whose sum is σ = 22755978. Its totient is φ = 6501704.

The previous prime is 13003399. The next prime is 13003433. The reversal of 13003412 is 21430031.

It can be written as a sum of positive squares in only one way, i.e., 11930116 + 1073296 = 3454^2 + 1036^2 .

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 as a sum of consecutive naturals, namely, 1625423 + ... + 1625430.

It is an arithmetic number, because the mean of its divisors is an integer number (3792663).

Almost surely, 213003412 is an apocalyptic number.

It is an amenable number.

13003412 is a deficient number, since it is larger than the sum of its proper divisors (9752566).

13003412 is a wasteful number, since it uses less digits than its factorization.

13003412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3250857 (or 3250855 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13003412 is about 3606.0244036889. The cubic root of 13003412 is about 235.1540381366.

Adding to 13003412 its reverse (21430031), we get a palindrome (34433443).

The spelling of 13003412 in words is "thirteen million, three thousand, four hundred twelve".

Divisors: 1 2 4 3250853 6501706 13003412