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44012013 = 389164839
BaseRepresentation
bin1010011111100…
…1000111101101
310001211001010120
42213321013231
542231341023
64211155153
71043044623
oct247710755
9101731116
1044012013
1122930971
12128a5ab9
13916ca16
145bb9513
153ce58e3
hex29f91ed

44012013 has 8 divisors (see below), whose sum is σ = 59342400. Its totient is φ = 29011488.

The previous prime is 44012011. The next prime is 44012039. The reversal of 44012013 is 31021044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44012013 - 21 = 44012011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44011983 and 44012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44012011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82153 + ... + 82686.

It is an arithmetic number, because the mean of its divisors is an integer number (7417800).

Almost surely, 244012013 is an apocalyptic number.

It is an amenable number.

44012013 is a deficient number, since it is larger than the sum of its proper divisors (15330387).

44012013 is a wasteful number, since it uses less digits than its factorization.

44012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164931.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 44012013 is about 6634.1550328584. The cubic root of 44012013 is about 353.0669594534.

Adding to 44012013 its reverse (31021044), we get a palindrome (75033057).

The spelling of 44012013 in words is "forty-four million, twelve thousand, thirteen".

Divisors: 1 3 89 267 164839 494517 14670671 44012013