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44043988909 = 1747149369959
BaseRepresentation
bin101001000001001110…
…011110111110101101
311012200111112110101111
4221001032132332231
51210200230121114
632122235312021
73116310504634
oct510116367655
9135614473344
1044043988909
1117751757838
1286522ab611
1341cbb362cb
1421bb6d251b
15122ba4abc4
hexa4139efad

44043988909 has 16 divisors (see below), whose sum is σ = 47946816000. Its totient is φ = 40298785024.

The previous prime is 44043988907. The next prime is 44043988949. The reversal of 44043988909 is 90988934044.

It is a cyclic number.

It is not a de Polignac number, because 44043988909 - 21 = 44043988907 is a prime.

It is a super-2 number, since 2×440439889092 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44043988903) 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, 65929 + ... + 304030.

It is an arithmetic number, because the mean of its divisors is an integer number (2996676000).

Almost surely, 244043988909 is an apocalyptic number.

It is an amenable number.

44043988909 is a deficient number, since it is larger than the sum of its proper divisors (3902827091).

44043988909 is a wasteful number, since it uses less digits than its factorization.

44043988909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370172.

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 44043988909 in words is "forty-four billion, forty-three million, nine hundred eighty-eight thousand, nine hundred nine".

Divisors: 1 17 47 149 799 2533 7003 119051 369959 6289303 17388073 55123891 295597241 937106147 2590822877 44043988909