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28037270016 = 29377373
BaseRepresentation
bin11010000111001001…
…101100101000000000
32200100222001220000000
4122013021230220000
5424410020120031
620514040000000
72011534602000
oct320711545000
980328056000
1028037270016
1110988342a38
125525760000
13284a869b02
1414dd8d2000
15ae16793e6
hex68726ca00

28037270016 has 640 divisors, whose sum is σ = 99321024000. Its totient is φ = 7900913664.

The previous prime is 28037269993. The next prime is 28037270047. The reversal of 28037270016 is 61007273082.

28037270016 is a `hidden beast` number, since 280 + 372 + 7 + 0 + 0 + 1 + 6 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 384072156 + ... + 384072228.

It is an arithmetic number, because the mean of its divisors is an integer number (155189100).

Almost surely, 228037270016 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 28037270016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49660512000).

28037270016 is an abundant number, since it is smaller than the sum of its proper divisors (71283753984).

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

28037270016 is an frugal number, since it uses more digits than its factorization.

28037270016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 28037270016 in words is "twenty-eight billion, thirty-seven million, two hundred seventy thousand, sixteen".