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16379729868 = 22319115714549
BaseRepresentation
bin11110100000100111…
…01101011111001100
31120021112100111020210
433100103231133030
5232021202323433
611305202242420
71116622256325
oct172023553714
946245314223
1016379729868
116a45a26537
123211656410
13171064b468
14b1557b44c
1565d003463
hex3d04ed7cc

16379729868 has 48 divisors (see below), whose sum is σ = 38452377600. Its totient is φ = 5426673600.

The previous prime is 16379729833. The next prime is 16379729897. The reversal of 16379729868 is 86892797361.

It is a junction number, because it is equal to n+sod(n) for n = 16379729799 and 16379729808.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3598458 + ... + 3603006.

It is an arithmetic number, because the mean of its divisors is an integer number (801091200).

Almost surely, 216379729868 is an apocalyptic number.

It is an amenable number.

16379729868 is an abundant number, since it is smaller than the sum of its proper divisors (22072647732).

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

16379729868 is a wasteful number, since it uses less digits than its factorization.

16379729868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6318 (or 6316 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 66.

The spelling of 16379729868 in words is "sixteen billion, three hundred seventy-nine million, seven hundred twenty-nine thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 191 382 573 764 1146 1571 2292 3142 4549 4713 6284 9098 9426 13647 18196 18852 27294 54588 300061 600122 868859 900183 1200244 1737718 1800366 2606577 3475436 3600732 5213154 7146479 10426308 14292958 21439437 28585916 42878874 85757748 1364977489 2729954978 4094932467 5459909956 8189864934 16379729868