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13055444 = 2223141907
BaseRepresentation
bin110001110011…
…010111010100
3220120021200222
4301303113110
511320233234
61143453512
7215653343
oct61632724
926507628
1013055444
117407826
124457298
13292151c
141a3bb5a
15122d42e
hexc735d4

13055444 has 12 divisors (see below), whose sum is σ = 23840544. Its totient is φ = 6243864.

The previous prime is 13055431. The next prime is 13055447. The reversal of 13055444 is 44455031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13055447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70862 + ... + 71045.

It is an arithmetic number, because the mean of its divisors is an integer number (1986712).

Almost surely, 213055444 is an apocalyptic number.

It is an amenable number.

13055444 is a deficient number, since it is larger than the sum of its proper divisors (10785100).

13055444 is a wasteful number, since it uses less digits than its factorization.

13055444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141934 (or 141932 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 13055444 is about 3613.2317943913. The cubic root of 13055444 is about 235.4672700610.

The spelling of 13055444 in words is "thirteen million, fifty-five thousand, four hundred forty-four".

Divisors: 1 2 4 23 46 92 141907 283814 567628 3263861 6527722 13055444