Base | Representation |
---|---|
bin | 1000010111111… |
… | …10100101111110 |
3 | 11220012000021112 |
4 | 10023332211332 |
5 | 120440430310 |
6 | 10545402022 |
7 | 1512051041 |
oct | 413764576 |
9 | 156160245 |
10 | 70248830 |
11 | 36720a93 |
12 | 1b639312 |
13 | 11727b72 |
14 | 9488c58 |
15 | 6279705 |
hex | 42fe97e |
70248830 has 16 divisors (see below), whose sum is σ = 128336400. Its totient is φ = 27679872.
The previous prime is 70248803. The next prime is 70248839. The reversal of 70248830 is 3884207.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70248839) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51755 + ... + 53094.
It is an arithmetic number, because the mean of its divisors is an integer number (8021025).
Almost surely, 270248830 is an apocalyptic number.
70248830 is a deficient number, since it is larger than the sum of its proper divisors (58087570).
70248830 is a wasteful number, since it uses less digits than its factorization.
70248830 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 104923.
The product of its (nonzero) digits is 10752, while the sum is 32.
The square root of 70248830 is about 8381.4575104811. The cubic root of 70248830 is about 412.6162855504.
The spelling of 70248830 in words is "seventy million, two hundred forty-eight thousand, eight hundred thirty".
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