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27096809472 = 215354183
BaseRepresentation
bin11001001111000110…
…001000000000000000
32120221102102112200000
4121033012020000000
5420443240400342
620240442400000
71646325036345
oct311706100000
976842375600
1027096809472
1110545496017
125302800000
13272aa78095
141450a427cc
15a88d0944c
hex64f188000

27096809472 has 384 divisors, whose sum is σ = 84159522720. Its totient is φ = 8705802240.

The previous prime is 27096809471. The next prime is 27096809539. The reversal of 27096809472 is 27490869072.

27096809472 is a `hidden beast` number, since 2 + 7 + 0 + 96 + 80 + 9 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (27096809471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326467543 + ... + 326467625.

Almost surely, 227096809472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27096809472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42079761360).

27096809472 is an abundant number, since it is smaller than the sum of its proper divisors (57062713248).

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

27096809472 is an frugal number, since it uses more digits than its factorization.

27096809472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 27096809472 in words is "twenty-seven billion, ninety-six million, eight hundred nine thousand, four hundred seventy-two".