Base | Representation |
---|---|
bin | 1000010110101… |
… | …10101000000000 |
3 | 11212212200201012 |
4 | 10023112220000 |
5 | 120420210440 |
6 | 10542100052 |
7 | 1510466540 |
oct | 413265000 |
9 | 155780635 |
10 | 70085120 |
11 | 36619a96 |
12 | 1b57a628 |
13 | 1169b4b1 |
14 | 9445320 |
15 | 6245e65 |
hex | 42d6a00 |
70085120 has 80 divisors (see below), whose sum is σ = 192094848. Its totient is φ = 24023040.
The previous prime is 70085089. The next prime is 70085143. The reversal of 70085120 is 2158007.
It is a tau number, because it is divible by the number of its divisors (80).
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, 15965 + ... + 19875.
Almost surely, 270085120 is an apocalyptic number.
70085120 is a gapful number since it is divisible by the number (70) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70085120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96047424).
70085120 is an abundant number, since it is smaller than the sum of its proper divisors (122009728).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70085120 is an equidigital number, since it uses as much as digits as its factorization.
70085120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3941 (or 3925 counting only the distinct ones).
The product of its (nonzero) digits is 560, while the sum is 23.
The square root of 70085120 is about 8371.6856128261. The cubic root of 70085120 is about 412.2955117467.
The spelling of 70085120 in words is "seventy million, eighty-five thousand, one hundred twenty".
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