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44014767381 = 32131901197893
BaseRepresentation
bin101000111111011111…
…000000110100010101
311012121110112211222200
4220333133000310111
51210120240024011
632115313115113
73115504230654
oct507737006425
9135543484880
1044014767381
1117737209212
128644558a99
1341c5a74770
1421b788719b
1512291c7856
hexa3f7c0d15

44014767381 has 24 divisors (see below), whose sum is σ = 68503778616. Its totient is φ = 27071625600.

The previous prime is 44014767367. The next prime is 44014767383. The reversal of 44014767381 is 18376741044.

44014767381 is a `hidden beast` number, since 440 + 147 + 67 + 3 + 8 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 555026481 + 43459740900 = 23559^2 + 208470^2 .

It is not a de Polignac number, because 44014767381 - 27 = 44014767253 is a prime.

It is a super-2 number, since 2×440147673812 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44014767383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123471 + ... + 321363.

It is an arithmetic number, because the mean of its divisors is an integer number (2854324109).

Almost surely, 244014767381 is an apocalyptic number.

It is an amenable number.

44014767381 is a deficient number, since it is larger than the sum of its proper divisors (24489011235).

44014767381 is a wasteful number, since it uses less digits than its factorization.

44014767381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199813 (or 199810 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

It can be divided in two parts, 440147 and 67381, that added together give a triangular number (507528 = T1007).

The spelling of 44014767381 in words is "forty-four billion, fourteen million, seven hundred sixty-seven thousand, three hundred eighty-one".

Divisors: 1 3 9 13 39 117 1901 5703 17109 24713 74139 197893 222417 593679 1781037 2572609 7717827 23153481 376194593 1128583779 3385751337 4890529709 14671589127 44014767381