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52055242040 = 23589193239317
BaseRepresentation
bin110000011110101110…
…111111010100111000
311222100211010021200102
4300132232333110320
51323102120221130
635525220254532
73521656154024
oct603656772470
9158324107612
1052055242040
112009291089a
12a109241448
134ba77b9489
14273b689384
15154a01a645
hexc1ebbf538

52055242040 has 128 divisors (see below), whose sum is σ = 119929248000. Its totient is φ = 20331429888.

The previous prime is 52055241991. The next prime is 52055242061. The reversal of 52055242040 is 4024255025.

It is a junction number, because it is equal to n+sod(n) for n = 52055241994 and 52055242012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164211962 + ... + 164212278.

It is an arithmetic number, because the mean of its divisors is an integer number (936947250).

Almost surely, 252055242040 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 52055242040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59964624000).

52055242040 is an abundant number, since it is smaller than the sum of its proper divisors (67874005960).

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

52055242040 is a wasteful number, since it uses less digits than its factorization.

52055242040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

Adding to 52055242040 its reverse (4024255025), we get a palindrome (56079497065).

The spelling of 52055242040 in words is "fifty-two billion, fifty-five million, two hundred forty-two thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 89 178 193 239 317 356 386 445 478 634 712 772 890 956 965 1195 1268 1544 1585 1780 1912 1930 2390 2536 3170 3560 3860 4780 6340 7720 9560 12680 17177 21271 28213 34354 42542 46127 56426 61181 68708 75763 85084 85885 92254 106355 112852 122362 137416 141065 151526 170168 171770 184508 212710 225704 230635 244724 282130 303052 305905 343540 369016 378815 425420 461270 489448 564260 606104 611810 687080 757630 850840 922540 1128520 1223620 1515260 1845080 2447240 3030520 4105303 5445109 6742907 8210606 10890218 13485814 14622259 16421212 20526515 21780436 26971628 27225545 29244518 32842424 33714535 41053030 43560872 53943256 54451090 58489036 67429070 73111295 82106060 108902180 116978072 134858140 146222590 164212120 217804360 269716280 292445180 584890360 1301381051 2602762102 5205524204 6506905255 10411048408 13013810510 26027621020 52055242040