Search a number
-
+
74905967444 = 227111811343653
BaseRepresentation
bin100010111000010111…
…1100101101101010100
321011100022210102000112
41011300233211231110
52211401411424234
654224502502152
75261145134510
oct1056057455524
9234308712015
1074905967444
1129849514020
1212625a34958
1370a9971979
1438a83db140
151e36190ace
hex1170be5b54

74905967444 has 48 divisors (see below), whose sum is σ = 164334258816. Its totient is φ = 29022883200.

The previous prime is 74905967429. The next prime is 74905967447. The reversal of 74905967444 is 44476950947.

It is a super-2 number, since 2×749059674442 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74905967447) 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 15 ways as a sum of consecutive naturals, for example, 616079 + ... + 727574.

It is an arithmetic number, because the mean of its divisors is an integer number (3423630392).

Almost surely, 274905967444 is an apocalyptic number.

It is an amenable number.

74905967444 is an abundant number, since it is smaller than the sum of its proper divisors (89428291372).

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

74905967444 is a wasteful number, since it uses less digits than its factorization.

74905967444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343856 (or 1343854 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 74905967444 in words is "seventy-four billion, nine hundred five million, nine hundred sixty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 181 308 362 724 1267 1991 2534 3982 5068 7964 13937 27874 55748 1343653 2687306 5374612 9405571 14780183 18811142 29560366 37622284 59120732 103461281 206922562 243201193 413845124 486402386 972804772 1702408351 2675213123 3404816702 5350426246 6809633404 10700852492 18726491861 37452983722 74905967444