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13020044 = 228339217
BaseRepresentation
bin110001101010…
…101110001100
3220111111010212
4301222232030
511313120134
61143021552
7215445212
oct61525614
926444125
1013020044
117393174
12443a8b8
13290b38b
141a2ccb2
151222bce
hexc6ab8c

13020044 has 12 divisors (see below), whose sum is σ = 23060184. Its totient is φ = 6431424.

The previous prime is 13020037. The next prime is 13020053. The reversal of 13020044 is 44002031.

13020044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19277 + ... + 19940.

It is an arithmetic number, because the mean of its divisors is an integer number (1921682).

Almost surely, 213020044 is an apocalyptic number.

It is an amenable number.

13020044 is a deficient number, since it is larger than the sum of its proper divisors (10040140).

13020044 is a wasteful number, since it uses less digits than its factorization.

13020044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39304 (or 39302 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 13020044 is about 3608.3298075425. The cubic root of 13020044 is about 235.2542532611.

Adding to 13020044 its reverse (44002031), we get a palindrome (57022075).

The spelling of 13020044 in words is "thirteen million, twenty thousand, forty-four".

Divisors: 1 2 4 83 166 332 39217 78434 156868 3255011 6510022 13020044