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27018664848 = 24327195923911
BaseRepresentation
bin11001001010011100…
…000001101110010000
32120201222101101101200
4121022130001232100
5420313234233343
620225011431200
71644355601430
oct311234015620
976658341350
1027018664848
111050537188a
1252a05b5500
132717817366
1414445002c0
15a820204d3
hex64a701b90

27018664848 has 240 divisors, whose sum is σ = 92510745600. Its totient is φ = 7189067520.

The previous prime is 27018664843. The next prime is 27018664891. The reversal of 27018664848 is 84846681072.

It is a junction number, because it is equal to n+sod(n) for n = 27018664794 and 27018664803.

It is not an unprimeable number, because it can be changed into a prime (27018664843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1118013 + ... + 1141923.

It is an arithmetic number, because the mean of its divisors is an integer number (385461440).

Almost surely, 227018664848 is an apocalyptic number.

27018664848 is a gapful number since it is divisible by the number (28) 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 27018664848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46255372800).

27018664848 is an abundant number, since it is smaller than the sum of its proper divisors (65492080752).

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

27018664848 is a wasteful number, since it uses less digits than its factorization.

27018664848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24010 (or 24001 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 27018664848 in words is "twenty-seven billion, eighteen million, six hundred sixty-four thousand, eight hundred forty-eight".