Base | Representation |
---|---|
bin | 1000010110110… |
… | …00000111101101 |
3 | 11212220000010001 |
4 | 10023120013231 |
5 | 120420404440 |
6 | 10542144301 |
7 | 1510523440 |
oct | 413300755 |
9 | 155800101 |
10 | 70091245 |
11 | 36623654 |
12 | 1b582091 |
13 | 116a1213 |
14 | 9447657 |
15 | 6247b9a |
hex | 42d81ed |
70091245 has 8 divisors (see below), whose sum is σ = 96125184. Its totient is φ = 48062544.
The previous prime is 70091243. The next prime is 70091261. The reversal of 70091245 is 54219007.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 70091245 - 21 = 70091243 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70091243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001269 + ... + 1001338.
It is an arithmetic number, because the mean of its divisors is an integer number (12015648).
Almost surely, 270091245 is an apocalyptic number.
It is an amenable number.
70091245 is a deficient number, since it is larger than the sum of its proper divisors (26033939).
70091245 is a wasteful number, since it uses less digits than its factorization.
70091245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2002619.
The product of its (nonzero) digits is 2520, while the sum is 28.
The square root of 70091245 is about 8372.0514212468. The cubic root of 70091245 is about 412.3075220776.
The spelling of 70091245 in words is "seventy million, ninety-one thousand, two hundred forty-five".
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