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53310205240 = 23531193337661
BaseRepresentation
bin110001101001100010…
…010010110100111000
312002121021120000112221
4301221202102310320
51333134403031430
640253530413424
73565035160615
oct615142226470
9162537500487
1053310205240
1120677248266
12a3b9591274
1350477b6156
14281a20550c
1515c02b157a
hexc69892d38

53310205240 has 128 divisors (see below), whose sum is σ = 125016952320. Its totient is φ = 20437401600.

The previous prime is 53310205189. The next prime is 53310205241. The reversal of 53310205240 is 4250201335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53310205241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80650510 + ... + 80651170.

It is an arithmetic number, because the mean of its divisors is an integer number (976694940).

Almost surely, 253310205240 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 53310205240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62508476160).

53310205240 is an abundant number, since it is smaller than the sum of its proper divisors (71706747080).

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

53310205240 is a wasteful number, since it uses less digits than its factorization.

53310205240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 53310205240 its reverse (4250201335), we get a palindrome (57560406575).

The spelling of 53310205240 in words is "fifty-three billion, three hundred ten million, two hundred five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 193 248 310 337 386 620 661 674 772 965 1240 1322 1348 1544 1685 1930 2644 2696 3305 3370 3860 5288 5983 6610 6740 7720 10447 11966 13220 13480 20491 20894 23932 26440 29915 40982 41788 47864 52235 59830 65041 81964 83576 102455 104470 119660 127573 130082 163928 204910 208940 222757 239320 255146 260164 325205 409820 417880 445514 510292 520328 637865 650410 819640 891028 1020584 1113785 1275730 1300820 1782056 2016271 2227570 2551460 2601640 3954763 4032542 4455140 5102920 6905467 7909526 8065084 8910280 10081355 13810934 15819052 16130168 19773815 20162710 27621868 31638104 34527335 39547630 40325420 42992101 55243736 69054670 79095260 80650840 85984202 138109340 158190520 171968404 214960505 276218680 343936808 429921010 859842020 1332755131 1719684040 2665510262 5331020524 6663775655 10662041048 13327551310 26655102620 53310205240