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1028808000 = 26335311433
BaseRepresentation
bin111101010100100…
…101110101000000
32122200212212021000
4331110211311000
54101333324000
6250030532000
734331503143
oct7524456500
92580785230
101028808000
1148880a750
12248667000
131351b573c
149a8ca05a
15604c2000
hex3d525d40

1028808000 has 448 divisors, whose sum is σ = 4127235840. Its totient is φ = 248832000.

The previous prime is 1028807999. The next prime is 1028808017. The reversal of 1028808000 is 8088201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2375784 + ... + 2376216.

It is an arithmetic number, because the mean of its divisors is an integer number (9212580).

Almost surely, 21028808000 is an apocalyptic number.

1028808000 is a gapful number since it is divisible by the number (10) 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 1028808000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063617920).

1028808000 is an abundant number, since it is smaller than the sum of its proper divisors (3098427840).

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

1028808000 is a wasteful number, since it uses less digits than its factorization.

1028808000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 1028808000 is about 32075.0370225819. The cubic root of 1028808000 is about 1009.5119034913.

The spelling of 1028808000 in words is "one billion, twenty-eight million, eight hundred eight thousand".