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51101050055510 = 25713196269471451
BaseRepresentation
bin10111001111001111000111…
…11011111010101101010110
320200221012202001002101020102
423213213203323322231112
523144214422303234020
6300403255345134102
713522633441445030
oct1347474373725526
9220835661071212
1051101050055510
1115311919611354
12589388632a332
132268a67c12b70
14c8943832cc50
155d93c78cd475
hex2e79e3efab56

51101050055510 has 128 divisors (see below), whose sum is σ = 119186082892800. Its totient is φ = 15318971942400.

The previous prime is 51101050055509. The next prime is 51101050055593. The reversal of 51101050055510 is 1555005010115.

It is a happy number.

It is a super-2 number, since 2×511010500555102 (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 108155285 + ... + 108626735.

It is an arithmetic number, because the mean of its divisors is an integer number (931141272600).

Almost surely, 251101050055510 is an apocalyptic number.

51101050055510 is an abundant number, since it is smaller than the sum of its proper divisors (68085032837290).

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

51101050055510 is a wasteful number, since it uses less digits than its factorization.

51101050055510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477766.

The product of its (nonzero) digits is 3125, while the sum is 29.

Adding to 51101050055510 its reverse (1555005010115), we get a palindrome (52656055065625).

The spelling of 51101050055510 in words is "fifty-one trillion, one hundred one billion, fifty million, fifty-five thousand, five hundred ten".

Divisors: 1 2 5 7 10 13 14 19 26 35 38 65 70 91 95 130 133 182 190 247 266 455 494 665 910 1235 1330 1729 2470 3458 6269 8645 12538 17290 31345 43883 62690 81497 87766 119111 162994 219415 238222 407485 438830 471451 570479 595555 814970 833777 942902 1140958 1191110 1548443 1667554 2357255 2852395 3096886 3300157 4168885 4714510 5704790 6128863 6600314 7742215 8337770 8957569 10839101 12257726 15484430 16500785 17915138 21678202 30644315 33001570 42902041 44787845 54195505 61288630 62702983 85804082 89575690 108391010 116448397 125405966 214510205 232896794 313514915 429020410 582241985 627029830 815138779 1164483970 1630277558 2955526319 4075693895 5911052638 8151387790 14777631595 20688684233 29555263190 38421842147 41377368466 56155000061 76843684294 103443421165 112310000122 192109210735 206886842330 268952895029 280775000305 384218421470 393085000427 537905790058 561550000610 730015000793 786170000854 1344764475145 1460030001586 1965425002135 2689528950290 3650075003965 3930850004270 5110105005551 7300150007930 10220210011102 25550525027755 51101050055510