Base | Representation |
---|---|
bin | 1000010110101… |
… | …01110101100111 |
3 | 11212212112021202 |
4 | 10023111311213 |
5 | 120420110040 |
6 | 10542033115 |
7 | 1510454252 |
oct | 413256547 |
9 | 155775252 |
10 | 70081895 |
11 | 36617624 |
12 | 1b57879b |
13 | 11699ba0 |
14 | 9444099 |
15 | 6245015 |
hex | 42d5d67 |
70081895 has 8 divisors (see below), whose sum is σ = 90567456. Its totient is φ = 51752736.
The previous prime is 70081883. The next prime is 70081909. The reversal of 70081895 is 59818007.
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 70081895 - 226 = 2973031 is a prime.
It is a super-2 number, since 2×700818952 = 9822944013582050, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
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, 539027 + ... + 539156.
It is an arithmetic number, because the mean of its divisors is an integer number (11320932).
Almost surely, 270081895 is an apocalyptic number.
70081895 is a deficient number, since it is larger than the sum of its proper divisors (20485561).
70081895 is a wasteful number, since it uses less digits than its factorization.
70081895 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1078201.
The product of its (nonzero) digits is 20160, while the sum is 38.
The square root of 70081895 is about 8371.4929970705. The cubic root of 70081895 is about 412.2891876586.
The spelling of 70081895 in words is "seventy million, eighty-one thousand, eight hundred ninety-five".
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