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28060400160 = 2533513618191
BaseRepresentation
bin11010001000100001…
…111011101000100000
32200102120121000121000
4122020201323220200
5424431430301120
620520223432000
72012235315552
oct321041735040
980376530530
1028060400160
111099a400a61
125531455600
1328525a7ba0
1415029d34d2
15ae36e7990
hex68887ba20

28060400160 has 384 divisors, whose sum is σ = 107513118720. Its totient is φ = 6793113600.

The previous prime is 28060400153. The next prime is 28060400161. The reversal of 28060400160 is 6100406082.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (28060400161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3421665 + ... + 3429855.

It is an arithmetic number, because the mean of its divisors is an integer number (279982080).

Almost surely, 228060400160 is an apocalyptic number.

28060400160 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 28060400160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53756559360).

28060400160 is an abundant number, since it is smaller than the sum of its proper divisors (79452718560).

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

28060400160 is a wasteful number, since it uses less digits than its factorization.

28060400160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8289 (or 8275 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 28060400160 in words is "twenty-eight billion, sixty million, four hundred thousand, one hundred sixty".