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53131011205020 = 22357510124799531
BaseRepresentation
bin11000001010010100001110…
…00011001010011110011100
320222010021102112010022201120
430011022013003022132130
523430444302332030040
6305000014413410540
714122405662512160
oct1405120703123634
9228107375108646
1053131011205020
1115a2480a780221
125b61190199a50
132385304788a68
14d197a9dd2ca0
156220d5dad7d0
hex3052870ca79c

53131011205020 has 96 divisors (see below), whose sum is σ = 170052573282816. Its totient is φ = 12141849888000.

The previous prime is 53131011204983. The next prime is 53131011205073. The reversal of 53131011205020 is 2050211013135.

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, 10257346 + ... + 14542185.

It is an arithmetic number, because the mean of its divisors is an integer number (1771380971696).

Almost surely, 253131011205020 is an apocalyptic number.

It is an amenable number.

53131011205020 is an abundant number, since it is smaller than the sum of its proper divisors (116921562077796).

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

53131011205020 is a wasteful number, since it uses less digits than its factorization.

53131011205020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24804651 (or 24804649 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 53131011205020 its reverse (2050211013135), we get a palindrome (55181222218155).

The spelling of 53131011205020 in words is "fifty-three trillion, one hundred thirty-one billion, eleven million, two hundred five thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 5101 10202 15303 20404 25505 30606 35707 51010 61212 71414 76515 102020 107121 142828 153030 178535 214242 306060 357070 428484 535605 714140 1071210 2142420 24799531 49599062 74398593 99198124 123997655 148797186 173596717 247995310 297594372 347193434 371992965 495990620 520790151 694386868 743985930 867983585 1041580302 1487971860 1735967170 2083160604 2603950755 3471934340 5207901510 10415803020 126502407631 253004815262 379507222893 506009630524 632512038155 759014445786 885516853417 1265024076310 1518028891572 1771033706834 1897536114465 2530048152620 2656550560251 3542067413668 3795072228930 4427584267085 5313101120502 7590144457860 8855168534170 10626202241004 13282752801255 17710337068340 26565505602510 53131011205020