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27072119520 = 25325173271401
BaseRepresentation
bin11001001101100111…
…111100001011100000
32120212200222011102100
4121031213330023200
5420420430311040
620234201250400
71645605135105
oct311547741340
976780864370
1027072119520
11105325620a6
1252b6493a00
132725912044
14144b656aac
15a86a7db30
hex64d9fc2e0

27072119520 has 288 divisors, whose sum is σ = 93493056384. Its totient is φ = 7133184000.

The previous prime is 27072119519. The next prime is 27072119537. The reversal of 27072119520 is 2591127072.

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67511320 + ... + 67511720.

It is an arithmetic number, because the mean of its divisors is an integer number (324628668).

Almost surely, 227072119520 is an apocalyptic number.

27072119520 is a gapful number since it is divisible by the number (20) 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 27072119520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46746528192).

27072119520 is an abundant number, since it is smaller than the sum of its proper divisors (66420936864).

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

27072119520 is a wasteful number, since it uses less digits than its factorization.

27072119520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 27072119520 in words is "twenty-seven billion, seventy-two million, one hundred nineteen thousand, five hundred twenty".