Base | Representation |
---|---|
bin | 111101010010111… |
… | …011001001000000 |
3 | 2122200001122211010 |
4 | 331102323021000 |
5 | 4101230333013 |
6 | 250013320520 |
7 | 34325003130 |
oct | 7522731100 |
9 | 2580048733 |
10 | 1028371008 |
11 | 4885413a5 |
12 | 248496140 |
13 | 135091872 |
14 | 9a814ac0 |
15 | 604377c3 |
hex | 3d4bb240 |
1028371008 has 112 divisors (see below), whose sum is σ = 3139098624. Its totient is φ = 291033600.
The previous prime is 1028370989. The next prime is 1028371033. The reversal of 1028371008 is 8001738201.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (112).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140233 + ... + 147383.
Almost surely, 21028371008 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 1028371008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569549312).
1028371008 is an abundant number, since it is smaller than the sum of its proper divisors (2110727616).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1028371008 is a wasteful number, since it uses less digits than its factorization.
1028371008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7280 (or 7270 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 30.
The square root of 1028371008 is about 32068.2242726347. The cubic root of 1028371008 is about 1009.3689512914.
The spelling of 1028371008 in words is "one billion, twenty-eight million, three hundred seventy-one thousand, eight".
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