Base | Representation |
---|---|
bin | 11010101100110111… |
… | …101100111101100100 |
3 | 2202000001211022201112 |
4 | 122230313230331210 |
5 | 432204020241022 |
6 | 21100523244152 |
7 | 2033320501340 |
oct | 325467547544 |
9 | 82001738645 |
10 | 28670087012 |
11 | 11182575796 |
12 | 5681679658 |
13 | 291b9b5938 |
14 | 155d97c620 |
15 | b2beca8e2 |
hex | 6acdecf64 |
28670087012 has 24 divisors (see below), whose sum is σ = 60358079040. Its totient is φ = 11640486240.
The previous prime is 28670087003. The next prime is 28670087021. The reversal of 28670087012 is 21078007682.
It is an interprime number because it is at equal distance from previous prime (28670087003) and next prime (28670087021).
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, 26945039 + ... + 26946102.
It is an arithmetic number, because the mean of its divisors is an integer number (2514919960).
Almost surely, 228670087012 is an apocalyptic number.
It is an amenable number.
28670087012 is an abundant number, since it is smaller than the sum of its proper divisors (31687992028).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28670087012 is a wasteful number, since it uses less digits than its factorization.
28670087012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53891171 (or 53891169 counting only the distinct ones).
The product of its (nonzero) digits is 75264, while the sum is 41.
The spelling of 28670087012 in words is "twenty-eight billion, six hundred seventy million, eighty-seven thousand, twelve".
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