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163109026080 = 25365711213127
BaseRepresentation
bin1001011111101000001…
…1100011100100100000
3120121000100102001000000
42113322003203210200
510133021402313310
6202533052300000
714532664563120
oct2277203434440
9517010361000
10163109026080
11631a087a500
1227740a71600
13124c5405120
147c747bac80
1543998ba4c0
hex25fa0e3920

163109026080 has 2016 divisors, whose sum is σ = 787755773952. Its totient is φ = 31039303680.

The previous prime is 163109026079. The next prime is 163109026099. The reversal of 163109026080 is 80620901361.

163109026080 is a `hidden beast` number, since 1 + 6 + 310 + 9 + 0 + 260 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a super-2 number, since 2×1631090260802 (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 1284322977 + ... + 1284323103.

It is an arithmetic number, because the mean of its divisors is an integer number (390751872).

Almost surely, 2163109026080 is an apocalyptic number.

163109026080 is a gapful number since it is divisible by the number (10) 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 163109026080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393877886976).

163109026080 is an abundant number, since it is smaller than the sum of its proper divisors (624646747872).

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

163109026080 is a wasteful number, since it uses less digits than its factorization.

163109026080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 163109026080 in words is "one hundred sixty-three billion, one hundred nine million, twenty-six thousand, eighty".