Base | Representation |
---|---|
bin | 1000100010111101110110… |
… | …10010010111111110001000 |
3 | 2110112122121222022220110012 |
4 | 10101132323102113332020 |
5 | 4430403320230414133 |
6 | 103545401031211052 |
7 | 3646536344612414 |
oct | 421367322277610 |
9 | 73478558286405 |
10 | 18793624076168 |
11 | 5a9637092a007 |
12 | 21363b6816a88 |
13 | a64300a9b546 |
14 | 48d88b029d44 |
15 | 228cea557b48 |
hex | 1117bb497f88 |
18793624076168 has 36 divisors (see below), whose sum is σ = 37190752440165. Its totient is φ = 8902132628256.
The previous prime is 18793624076159. The next prime is 18793624076197. The reversal of 18793624076168 is 86167042639781.
It is a happy number.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 16347158958244 + 2446465117924 = 4043162^2 + 1564118^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=3065422.
It is a super-2 number, since 2×187936240761682 (a number of 27 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 18793624076098 and 18793624076107.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 232931738 + ... + 233012406.
Almost surely, 218793624076168 is an apocalyptic number.
It is an amenable number.
18793624076168 is a deficient number, since it is larger than the sum of its proper divisors (18397128363997).
18793624076168 is an frugal number, since it uses more digits than its factorization.
18793624076168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 161382 (or 80690 counting only the distinct ones).
The product of its (nonzero) digits is 146313216, while the sum is 68.
The spelling of 18793624076168 in words is "eighteen trillion, seven hundred ninety-three billion, six hundred twenty-four million, seventy-six thousand, one hundred sixty-eight".
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