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44008913 = 13231031429
BaseRepresentation
bin1010011111100…
…0010111010001
310001210212212202
42213320113101
542231241123
64211132545
71043032604
oct247702721
9101725782
1044008913
1122929603
12128a4155
13916b4a0
145bb833b
153ce4a28
hex29f85d1

44008913 has 16 divisors (see below), whose sum is σ = 49969920. Its totient is φ = 38453184.

The previous prime is 44008907. The next prime is 44008919. The reversal of 44008913 is 31980044.

It is an interprime number because it is at equal distance from previous prime (44008907) and next prime (44008919).

It is a cyclic number.

It is not a de Polignac number, because 44008913 - 24 = 44008897 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (44008919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30083 + ... + 31511.

It is an arithmetic number, because the mean of its divisors is an integer number (3123120).

Almost surely, 244008913 is an apocalyptic number.

It is an amenable number.

44008913 is a deficient number, since it is larger than the sum of its proper divisors (5961007).

44008913 is a wasteful number, since it uses less digits than its factorization.

44008913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 44008913 is about 6633.9213893443. The cubic root of 44008913 is about 353.0586697980.

Adding to 44008913 its reverse (31980044), we get a palindrome (75988957).

The spelling of 44008913 in words is "forty-four million, eight thousand, nine hundred thirteen".

Divisors: 1 13 23 103 299 1339 1429 2369 18577 30797 32867 147187 427271 1913431 3385301 44008913