Base | Representation |
---|---|
bin | 10001011101100101… |
… | …110000001101100010 |
3 | 1210101201112002011221 |
4 | 101131211300031202 |
5 | 301400003001244 |
6 | 12340314325254 |
7 | 1232433525163 |
oct | 213545601542 |
9 | 53351462157 |
10 | 18750047074 |
11 | 7a51a04980 |
12 | 377342982a |
13 | 19ca743615 |
14 | c9c2b176a |
15 | 74b164784 |
hex | 45d970362 |
18750047074 has 16 divisors (see below), whose sum is σ = 32015891520. Its totient is φ = 8152194160.
The previous prime is 18750047053. The next prime is 18750047087. The reversal of 18750047074 is 47074005781.
It is a super-2 number, since 2×187500470742 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 18750047074.
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, 18527209 + ... + 18528220.
It is an arithmetic number, because the mean of its divisors is an integer number (2000993220).
Almost surely, 218750047074 is an apocalyptic number.
18750047074 is a deficient number, since it is larger than the sum of its proper divisors (13265844446).
18750047074 is a wasteful number, since it uses less digits than its factorization.
18750047074 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37055465.
The product of its (nonzero) digits is 219520, while the sum is 43.
The spelling of 18750047074 in words is "eighteen billion, seven hundred fifty million, forty-seven thousand, seventy-four".
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