Base | Representation |
---|---|
bin | 1000010110110… |
… | …11100001110111 |
3 | 11212220201021011 |
4 | 10023123201313 |
5 | 120421331312 |
6 | 10542333051 |
7 | 1510612234 |
oct | 413334167 |
9 | 155821234 |
10 | 70105207 |
11 | 36633097 |
12 | 1b58a187 |
13 | 116a7693 |
14 | 944c78b |
15 | 624bda7 |
hex | 42db877 |
70105207 has 2 divisors, whose sum is σ = 70105208. Its totient is φ = 70105206.
The previous prime is 70105201. The next prime is 70105253. The reversal of 70105207 is 70250107.
It is a weak prime.
It is an emirp because it is prime and its reverse (70250107) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 70105207 - 219 = 69580919 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (70105201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35052603 + 35052604.
It is an arithmetic number, because the mean of its divisors is an integer number (35052604).
Almost surely, 270105207 is an apocalyptic number.
70105207 is a deficient number, since it is larger than the sum of its proper divisors (1).
70105207 is an equidigital number, since it uses as much as digits as its factorization.
70105207 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 490, while the sum is 22.
The square root of 70105207 is about 8372.8852255361. The cubic root of 70105207 is about 412.3348971343.
The spelling of 70105207 in words is "seventy million, one hundred five thousand, two hundred seven".
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