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27231268608 = 2833137149193
BaseRepresentation
bin11001010111000111…
…000010111100000000
32121021210102202221000
4121113013002330000
5421232201043413
620302044332000
71652546651445
oct312707027400
977253382830
1027231268608
1110604383175
12533b844000
13274c8953bb
1414648439cc
15a95a19073
hex6571c2f00

27231268608 has 288 divisors, whose sum is σ = 82082952000. Its totient is φ = 8903983104.

The previous prime is 27231268591. The next prime is 27231268609. The reversal of 27231268608 is 80686213272.

27231268608 is a `hidden beast` number, since 2 + 7 + 2 + 31 + 2 + 6 + 8 + 608 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27231268609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141094560 + ... + 141094752.

It is an arithmetic number, because the mean of its divisors is an integer number (285010250).

Almost surely, 227231268608 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 27231268608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41041476000).

27231268608 is an abundant number, since it is smaller than the sum of its proper divisors (54851683392).

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

27231268608 is a wasteful number, since it uses less digits than its factorization.

27231268608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 27231268608 in words is "twenty-seven billion, two hundred thirty-one million, two hundred sixty-eight thousand, six hundred eight".