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18274830109122 = 23191289154380599
BaseRepresentation
bin1000010011110111100001…
…10000011100100111000010
32101201001112022221202011010
410021323300300130213002
54343403323001442442
6102511201400101350
73564212216632146
oct411736060344702
971631468852133
1018274830109122
115906348199a44
12207194b764856
13a274030a0312
14472713b81226
1521a5849d6b9c
hex109ef0c1c9c2

18274830109122 has 64 divisors (see below), whose sum is σ = 38528605440000. Its totient is φ = 5762713154688.

The previous prime is 18274830108991. The next prime is 18274830109147. The reversal of 18274830109122 is 22190103847281.

It is a super-2 number, since 2×182748301091222 (a number of 27 digits) contains 22 as substring.

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, 226697379 + ... + 226777977.

It is an arithmetic number, because the mean of its divisors is an integer number (602009460000).

Almost surely, 218274830109122 is an apocalyptic number.

18274830109122 is an abundant number, since it is smaller than the sum of its proper divisors (20253775330878).

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

18274830109122 is a wasteful number, since it uses less digits than its factorization.

18274830109122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83455.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 18274830109122 in words is "eighteen trillion, two hundred seventy-four billion, eight hundred thirty million, one hundred nine thousand, one hundred twenty-two".

Divisors: 1 2 3 6 19 38 57 114 1289 1543 2578 3086 3867 4629 7734 9258 24491 29317 48982 58634 73473 80599 87951 146946 161198 175902 241797 483594 1531381 1988927 3062762 3977854 4594143 5966781 9188286 11933562 37789613 75579226 103892111 113368839 124364257 207784222 226737678 248728514 311676333 373092771 623352666 746185542 1973950109 2362920883 3947900218 4725841766 5921850327 7088762649 11843700654 14177525298 160305527273 320611054546 480916581819 961833163638 3045805018187 6091610036374 9137415054561 18274830109122