Base | Representation |
---|---|
bin | 1000010111011… |
… | …01111000100001 |
3 | 11220001112101112 |
4 | 10023231320201 |
5 | 120431233020 |
6 | 10544113105 |
7 | 1511344352 |
oct | 413557041 |
9 | 156045345 |
10 | 70180385 |
11 | 36684620 |
12 | 1b605795 |
13 | 11702972 |
14 | 946bd29 |
15 | 62642c5 |
hex | 42ede21 |
70180385 has 8 divisors (see below), whose sum is σ = 91872576. Its totient is φ = 51040240.
The previous prime is 70180367. The next prime is 70180387. The reversal of 70180385 is 58308107.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 70180385 - 214 = 70164001 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (70180387) 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, 637949 + ... + 638058.
It is an arithmetic number, because the mean of its divisors is an integer number (11484072).
Almost surely, 270180385 is an apocalyptic number.
It is an amenable number.
70180385 is a deficient number, since it is larger than the sum of its proper divisors (21692191).
70180385 is a wasteful number, since it uses less digits than its factorization.
70180385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1276023.
The product of its (nonzero) digits is 6720, while the sum is 32.
The square root of 70180385 is about 8377.3733950445. The cubic root of 70180385 is about 412.4822349252.
The spelling of 70180385 in words is "seventy million, one hundred eighty thousand, three hundred eighty-five".
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