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168500368850 = 25211547560081
BaseRepresentation
bin1001110011101101100…
…1111001010111010010
3121002221002011121220212
42130323121321113102
510230042043300400
6205224043404122
715113411334452
oct2347331712722
9532832147825
10168500368850
116550807a090
12287a6523642
1312b74363988
14822682bd62
1545b2d75335
hex273b6795d2

168500368850 has 48 divisors (see below), whose sum is σ = 342528228576. Its totient is φ = 61160736000.

The previous prime is 168500368837. The next prime is 168500368867. The reversal of 168500368850 is 58863005861.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20810 + ... + 580890.

It is an arithmetic number, because the mean of its divisors is an integer number (7136004762).

Almost surely, 2168500368850 is an apocalyptic number.

168500368850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168500368850 is an abundant number, since it is smaller than the sum of its proper divisors (174027859726).

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

168500368850 is a wasteful number, since it uses less digits than its factorization.

168500368850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560651 (or 560646 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 168500368850 in words is "one hundred sixty-eight billion, five hundred million, three hundred sixty-eight thousand, eight hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 547 550 1094 2735 5470 6017 12034 13675 27350 30085 60170 150425 300850 560081 1120162 2800405 5600810 6160891 12321782 14002025 28004050 30804455 61608910 154022275 306364307 308044550 612728614 1531821535 3063643070 3370007377 6740014754 7659107675 15318215350 16850036885 33700073770 84250184425 168500368850