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19106850168 = 23327234493671
BaseRepresentation
bin10001110010110110…
…110110010101111000
31211022120220120000100
4101302312312111320
5303112323201133
612435542035400
71244325355350
oct216266662570
954276816010
1019106850168
11811535636a
123852a18b60
131a5663c203
14cd382db60
1576c643e13
hex472db6578

19106850168 has 192 divisors, whose sum is σ = 61865856000. Its totient is φ = 5208698880.

The previous prime is 19106850149. The next prime is 19106850197. The reversal of 19106850168 is 86105860191.

19106850168 is a `hidden beast` number, since 19 + 10 + 68 + 501 + 68 = 666.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 5202973 + ... + 5206643.

It is an arithmetic number, because the mean of its divisors is an integer number (322218000).

Almost surely, 219106850168 is an apocalyptic number.

19106850168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19106850168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30932928000).

19106850168 is an abundant number, since it is smaller than the sum of its proper divisors (42759005832).

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

19106850168 is a wasteful number, since it uses less digits than its factorization.

19106850168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162 (or 4155 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 19106850168 in words is "nineteen billion, one hundred six million, eight hundred fifty thousand, one hundred sixty-eight".