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28063294112 = 257331671231
BaseRepresentation
bin11010001000101100…
…111110001010100000
32200102210001001100102
4122020230332022200
5424433200402422
620520405441532
72012302031000
oct321054761240
980383031312
1028063294112
11109a0aa8257
1255324102a8
13285307c199
141503148000
15ae3aba192
hex688b3e2a0

28063294112 has 192 divisors, whose sum is σ = 67556966400. Its totient is φ = 11456121600.

The previous prime is 28063294111. The next prime is 28063294123. The reversal of 28063294112 is 21149236082.

It is a super-2 number, since 2×280632941122 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28063294111) 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, 22796537 + ... + 22797767.

It is an arithmetic number, because the mean of its divisors is an integer number (351859200).

Almost surely, 228063294112 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 28063294112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33778483200).

28063294112 is an abundant number, since it is smaller than the sum of its proper divisors (39493672288).

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

28063294112 is a wasteful number, since it uses less digits than its factorization.

28063294112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 28063294112 in words is "twenty-eight billion, sixty-three million, two hundred ninety-four thousand, one hundred twelve".