Base | Representation |
---|---|
bin | 1101010001110000… |
… | …01101100101000100 |
3 | 200101210002220101010 |
4 | 12220320031211010 |
5 | 104044314302033 |
6 | 3135155402220 |
7 | 341434224432 |
oct | 65070154504 |
9 | 20353086333 |
10 | 7128275268 |
11 | 30287a8794 |
12 | 146b2b3370 |
13 | 897a6967a |
14 | 4b89cbd52 |
15 | 2bac06863 |
hex | 1a8e0d944 |
7128275268 has 24 divisors (see below), whose sum is σ = 16794127168. Its totient is φ = 2353022496.
The previous prime is 7128275267. The next prime is 7128275279. The reversal of 7128275268 is 8625728217.
It is not an unprimeable number, because it can be changed into a prime (7128275263) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2882371 + ... + 2884842.
Almost surely, 27128275268 is an apocalyptic number.
It is an amenable number.
7128275268 is an abundant number, since it is smaller than the sum of its proper divisors (9665851900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7128275268 is a wasteful number, since it uses less digits than its factorization.
7128275268 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5767323 (or 5767321 counting only the distinct ones).
The product of its digits is 752640, while the sum is 48.
The square root of 7128275268 is about 84429.1138648275. The cubic root of 7128275268 is about 1924.5453712914.
The spelling of 7128275268 in words is "seven billion, one hundred twenty-eight million, two hundred seventy-five thousand, two hundred sixty-eight".
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