Base | Representation |
---|---|
bin | 111101010001110… |
… | …011010110000000 |
3 | 2122122111201102021 |
4 | 331101303112000 |
5 | 4101141430203 |
6 | 250003131224 |
7 | 34322336554 |
oct | 7521632600 |
9 | 2578451367 |
10 | 1028076928 |
11 | 48836045a |
12 | 248373b14 |
13 | 134cbaa58 |
14 | 9a779864 |
15 | 603ca5bd |
hex | 3d473580 |
1028076928 has 64 divisors (see below), whose sum is σ = 2183616000. Its totient is φ = 480729600.
The previous prime is 1028076899. The next prime is 1028076949. The reversal of 1028076928 is 8296708201.
It is a tau number, because it is divible by the number of its divisors (64).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189453 + ... + 194803.
It is an arithmetic number, because the mean of its divisors is an integer number (34119000).
Almost surely, 21028076928 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 1028076928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1091808000).
1028076928 is an abundant number, since it is smaller than the sum of its proper divisors (1155539072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1028076928 is an equidigital number, since it uses as much as digits as its factorization.
1028076928 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5463 (or 5451 counting only the distinct ones).
The product of its (nonzero) digits is 96768, while the sum is 43.
The square root of 1028076928 is about 32063.6387205195. The cubic root of 1028076928 is about 1009.2727267712.
The spelling of 1028076928 in words is "one billion, twenty-eight million, seventy-six thousand, nine hundred twenty-eight".
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