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52811975807220 = 223571082711161371
BaseRepresentation
bin11000000001000001111110…
…00011101101000011110100
320220222202221101201220012010
430000200333003231003310
523410232411301312340
6304153253045524220
714060352664414110
oct1400407703550364
9226882841656163
1052811975807220
11159114845a0903
125b0b393a13670
1323611c0077876
14d08182b40740
15618b624c1b80
hex30083f0ed0f4

52811975807220 has 96 divisors (see below), whose sum is σ = 169000028983296. Its totient is φ = 12071186870400.

The previous prime is 52811975807191. The next prime is 52811975807249. The reversal of 52811975807220 is 2270857911825.

It is an interprime number because it is at equal distance from previous prime (52811975807191) and next prime (52811975807249).

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, 44893135 + ... + 46054505.

It is an arithmetic number, because the mean of its divisors is an integer number (1760416968576).

Almost surely, 252811975807220 is an apocalyptic number.

It is an amenable number.

52811975807220 is an abundant number, since it is smaller than the sum of its proper divisors (116188053176076).

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

52811975807220 is a wasteful number, since it uses less digits than its factorization.

52811975807220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269661 (or 1269659 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 57.

The spelling of 52811975807220 in words is "fifty-two trillion, eight hundred eleven billion, nine hundred seventy-five million, eight hundred seven thousand, two hundred 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 108271 216542 324813 433084 541355 649626 757897 1082710 1161371 1299252 1515794 1624065 2165420 2273691 2322742 3031588 3248130 3484113 3789485 4547382 4645484 5806855 6496260 6968226 7578970 8129597 9094764 11368455 11613710 13936452 15157940 16259194 17420565 22736910 23227420 24388791 32518388 34841130 40647985 45473820 48777582 69682260 81295970 97555164 121943955 162591940 243887910 487775820 125742799541 251485599082 377228398623 502971198164 628713997705 754456797246 880199596787 1257427995410 1508913594492 1760399193574 1886141993115 2514855990820 2640598790361 3520798387148 3772283986230 4400997983935 5281197580722 7544567972460 8801995967870 10562395161444 13202993951805 17603991935740 26405987903610 52811975807220