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30431310044 = 22591995771123
BaseRepresentation
bin11100010101110110…
…001111000011011100
32220112210212201112012
4130111312033003130
5444310403410134
621551400330352
72125054603352
oct342566170334
986483781465
1030431310044
11119a6754713
125a934739b8
132b3c849a45
14168983d7d2
15bd19246ce
hex715d8f0dc

30431310044 has 48 divisors (see below), whose sum is σ = 54572448000. Its totient is φ = 14843575296.

The previous prime is 30431310031. The next prime is 30431310059. The reversal of 30431310044 is 44001313403.

It is a congruent number.

It is an unprimeable number.

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, 27097667 + ... + 27098789.

It is an arithmetic number, because the mean of its divisors is an integer number (1136926000).

Almost surely, 230431310044 is an apocalyptic number.

It is an amenable number.

30431310044 is a deficient number, since it is larger than the sum of its proper divisors (24141137956).

30431310044 is a wasteful number, since it uses less digits than its factorization.

30431310044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30431310044 its reverse (44001313403), we get a palindrome (74432623447).

The spelling of 30431310044 in words is "thirty billion, four hundred thirty-one million, three hundred ten thousand, forty-four".

Divisors: 1 2 4 59 118 199 236 398 577 796 1123 1154 2246 2308 4492 11741 23482 34043 46964 66257 68086 114823 132514 136172 223477 229646 265028 446954 459292 647971 893908 1295942 2591884 6774557 13185143 13549114 26370286 27098228 38230289 52740572 76460578 128946229 152921156 257892458 515784916 7607827511 15215655022 30431310044