Base | Representation |
---|---|
bin | 1000010110100… |
… | …11011100110011 |
3 | 11212212000212112 |
4 | 10023103130303 |
5 | 120414301430 |
6 | 10541515535 |
7 | 1510413611 |
oct | 413233463 |
9 | 155760775 |
10 | 70072115 |
11 | 36610243 |
12 | 1b572bab |
13 | 116955b9 |
14 | 94406b1 |
15 | 6242195 |
hex | 42d3733 |
70072115 has 8 divisors (see below), whose sum is σ = 84136128. Its totient is φ = 56024640.
The previous prime is 70072111. The next prime is 70072193. The reversal of 70072115 is 51127007.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 70072115 - 22 = 70072111 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (70072111) 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, 8975 + ... + 14855.
It is an arithmetic number, because the mean of its divisors is an integer number (10517016).
Almost surely, 270072115 is an apocalyptic number.
70072115 is a deficient number, since it is larger than the sum of its proper divisors (14064013).
70072115 is a wasteful number, since it uses less digits than its factorization.
70072115 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8269.
The product of its (nonzero) digits is 490, while the sum is 23.
The square root of 70072115 is about 8370.9088514928. The cubic root of 70072115 is about 412.2700083074.
The spelling of 70072115 in words is "seventy million, seventy-two thousand, one hundred fifteen".
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