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20357555130 = 232511191082273
BaseRepresentation
bin10010111101011001…
…111010001110111010
31221112202022221200100
4102331121322032322
5313143013231010
613204021020230
71320323235453
oct227531721672
957482287610
1020357555130
1186a7344530
123b41854676
131bc57a7913
14db199c12a
157e23482c0
hex4bd67a3ba

20357555130 has 96 divisors (see below), whose sum is σ = 60780507840. Its totient is φ = 4675415040.

The previous prime is 20357555123. The next prime is 20357555147. The reversal of 20357555130 is 3155575302.

20357555130 is a `hidden beast` number, since 2 + 0 + 3 + 5 + 75 + 551 + 30 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 522327 + ... + 559946.

It is an arithmetic number, because the mean of its divisors is an integer number (633130290).

Almost surely, 220357555130 is an apocalyptic number.

20357555130 is an abundant number, since it is smaller than the sum of its proper divisors (40422952710).

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

20357555130 is a wasteful number, since it uses less digits than its factorization.

20357555130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082316 (or 1082313 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The spelling of 20357555130 in words is "twenty billion, three hundred fifty-seven million, five hundred fifty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 19 22 30 33 38 45 55 57 66 90 95 99 110 114 165 171 190 198 209 285 330 342 418 495 570 627 855 990 1045 1254 1710 1881 2090 3135 3762 6270 9405 18810 1082273 2164546 3246819 5411365 6493638 9740457 10822730 11905003 16234095 19480914 20563187 23810006 32468190 35715009 41126374 48702285 59525015 61689561 71430018 97404570 102815935 107145027 119050030 123379122 178575045 185068683 205631870 214290054 226195057 308447805 357150090 370137366 452390114 535725135 616895610 678585171 925343415 1071450270 1130975285 1357170342 1850686830 2035755513 2261950570 3392925855 4071511026 6785851710 10178777565 20357555130