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16105506312 = 233795866109
BaseRepresentation
bin11101111111111011…
…01000011000001000
31112120102100111020210
432333331220120020
5230441002200222
611222044521120
71110052354620
oct167775503010
945512314223
1016105506312
1169151582a5
1231558501a0
1316988a70bc
14acad97880
15643dd6d0c
hex3bff68608

16105506312 has 32 divisors (see below), whose sum is σ = 46015732800. Its totient is φ = 4601573184.

The previous prime is 16105506311. The next prime is 16105506343. The reversal of 16105506312 is 21360550161.

It is a self number, because there is not a number n which added to its sum of digits gives 16105506312.

It is not an unprimeable number, because it can be changed into a prime (16105506311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47932887 + ... + 47933222.

It is an arithmetic number, because the mean of its divisors is an integer number (1437991650).

Almost surely, 216105506312 is an apocalyptic number.

16105506312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16105506312 is an abundant number, since it is smaller than the sum of its proper divisors (29910226488).

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

16105506312 is a wasteful number, since it uses less digits than its factorization.

16105506312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95866125 (or 95866121 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 16105506312 in words is "sixteen billion, one hundred five million, five hundred six thousand, three hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 95866109 191732218 287598327 383464436 575196654 671062763 766928872 1150393308 1342125526 2013188289 2300786616 2684251052 4026376578 5368502104 8052753156 16105506312