Search a number
-
+
28888084063800 = 233352138919132417
BaseRepresentation
bin1101001000110000001111…
…11111010010011000111000
310210021200012020200201021000
412210120013333102120320
512241300244010020200
6141235000321445000
76041044440024663
oct644300777223070
9123250166621230
1028888084063800
119228405385905
1232a6854aa0760
131317199a53470
1471c2955086da
153516a3160300
hex1a4607fd2638

28888084063800 has 768 divisors, whose sum is σ = 108463026672000. Its totient is φ = 7024432250880.

The previous prime is 28888084063789. The next prime is 28888084063847. The reversal of 28888084063800 is 836048088882.

28888084063800 is a `hidden beast` number, since 28 + 88 + 80 + 84 + 0 + 6 + 380 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11952040192 + ... + 11952042608.

Almost surely, 228888084063800 is an apocalyptic number.

28888084063800 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 28888084063800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54231513336000).

28888084063800 is an abundant number, since it is smaller than the sum of its proper divisors (79574942608200).

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

28888084063800 is a wasteful number, since it uses less digits than its factorization.

28888084063800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4457 (or 4442 counting only the distinct ones).

The product of its (nonzero) digits is 37748736, while the sum is 63.

The spelling of 28888084063800 in words is "twenty-eight trillion, eight hundred eighty-eight billion, eighty-four million, sixty-three thousand, eight hundred".