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44021011420 = 22517973673637
BaseRepresentation
bin101000111111110110…
…110101001111011100
311012121220022002012101
4220333312311033130
51210123334331140
632120055014444
73115611265111
oct507766651734
9135556262171
1044021011420
111773a793481
12864666a424
1341c714c869
1421b8630908
151229a0c99a
hexa3fdb53dc

44021011420 has 96 divisors (see below), whose sum is σ = 99187828992. Its totient is φ = 16352575488.

The previous prime is 44021011409. The next prime is 44021011429. The reversal of 44021011420 is 2411012044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44021011429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12101842 + ... + 12105478.

It is an arithmetic number, because the mean of its divisors is an integer number (1033206552).

Almost surely, 244021011420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44021011420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49593914496).

44021011420 is an abundant number, since it is smaller than the sum of its proper divisors (55166817572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44021011420 is a wasteful number, since it uses less digits than its factorization.

44021011420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127 (or 4125 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 44021011420 its reverse (2411012044), we get a palindrome (46432023464).

The spelling of 44021011420 in words is "forty-four billion, twenty-one million, eleven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 97 170 194 340 367 388 485 734 970 1468 1649 1835 1940 3298 3637 3670 6239 6596 7274 7340 8245 12478 14548 16490 18185 24956 31195 32980 35599 36370 61829 62390 71198 72740 123658 124780 142396 177995 247316 309145 352789 355990 605183 618290 705578 711980 1210366 1236580 1334779 1411156 1763945 2420732 2669558 3025915 3527890 5339116 5997413 6051830 6673895 7055780 11994826 12103660 13347790 22691243 23989652 26695580 29987065 45382486 59974130 90764972 113456215 119948260 129473563 226912430 258947126 453824860 517894252 647367815 1294735630 2201050571 2589471260 4402101142 8804202284 11005252855 22010505710 44021011420