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BaseRepresentation
bin111101010101000…
…110010100000000
32122201010121210000
4331111012110000
54101402103211
6250033440000
734332566103
oct7525062400
92581117700
101028941056
114888a0710
12248710000
13135231180
149a92273a
15604eb656
hex3d546500

1028941056 has 360 divisors, whose sum is σ = 3614887584. Its totient is φ = 286986240.

The previous prime is 1028941021. The next prime is 1028941063. The reversal of 1028941056 is 6501498201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1028941056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2965075 + ... + 2965421.

Almost surely, 21028941056 is an apocalyptic number.

1028941056 is a gapful number since it is divisible by the number (16) 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 1028941056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807443792).

1028941056 is an abundant number, since it is smaller than the sum of its proper divisors (2585946528).

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

1028941056 is a wasteful number, since it uses less digits than its factorization.

1028941056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 1028941056 is about 32077.1110918674. Note that the first 3 decimals coincide. The cubic root of 1028941056 is about 1009.5554217590. Note that the first 3 decimals are identical.

The spelling of 1028941056 in words is "one billion, twenty-eight million, nine hundred forty-one thousand, fifty-six".