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20050518708 = 2234116192227
BaseRepresentation
bin10010101011000110…
…101010001010110100
31220202100120212220000
4102223012222022310
5312030413044313
613113332111300
71306604411523
oct225306521264
956670525800
1020050518708
118559aa4520
123a76a65530
131b76cb516c
14d82cb64ba
157c53e9673
hex4ab1aa2b4

20050518708 has 120 divisors (see below), whose sum is σ = 58119134304. Its totient is φ = 5976244800.

The previous prime is 20050518701. The next prime is 20050518749. The reversal of 20050518708 is 80781505002.

20050518708 is a `hidden beast` number, since 20 + 0 + 50 + 518 + 70 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050518701) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 171291 + ... + 263517.

Almost surely, 220050518708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20050518708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29059567152).

20050518708 is an abundant number, since it is smaller than the sum of its proper divisors (38068615596).

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

20050518708 is a wasteful number, since it uses less digits than its factorization.

20050518708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92315 (or 92304 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The spelling of 20050518708 in words is "twenty billion, fifty million, five hundred eighteen thousand, seven hundred eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 61 66 81 99 108 122 132 162 183 198 244 297 324 366 396 549 594 671 732 891 1098 1188 1342 1647 1782 2013 2196 2684 3294 3564 4026 4941 6039 6588 8052 9882 12078 18117 19764 24156 36234 54351 72468 92227 108702 184454 217404 276681 368908 553362 830043 1014497 1106724 1660086 2028994 2490129 3043491 3320172 4057988 4980258 5625847 6086982 7470387 9130473 9960516 11251694 12173964 14940774 16877541 18260946 22503388 27391419 29881548 33755082 36521892 50632623 54782838 61884317 67510164 82174257 101265246 109565676 123768634 151897869 164348514 185652951 202530492 247537268 303795738 328697028 371305902 455693607 556958853 607591476 742611804 911387214 1113917706 1670876559 1822774428 2227835412 3341753118 5012629677 6683506236 10025259354 20050518708