Base | Representation |
---|---|
bin | 1000100011001010111110… |
… | …11001101101010011100000 |
3 | 2110120022211012001100020110 |
4 | 10101211133121231103200 |
5 | 4431012234120214110 |
6 | 103552524254011320 |
7 | 3650206121620020 |
oct | 421453731552340 |
9 | 73508735040213 |
10 | 18800672429280 |
11 | 5a993584aa025 |
12 | 21378431a6b40 |
13 | a64b851040a1 |
14 | 48dd59171a80 |
15 | 2290ae223a20 |
hex | 11195f66d4e0 |
18800672429280 has 192 divisors, whose sum is σ = 69333212003328. Its totient is φ = 4192484413440.
The previous prime is 18800672429267. The next prime is 18800672429327. The reversal of 18800672429280 is 8292427600881.
It is a self number, because there is not a number n which added to its sum of digits gives 18800672429280.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68099292 + ... + 68374811.
It is an arithmetic number, because the mean of its divisors is an integer number (361110479184).
Almost surely, 218800672429280 is an apocalyptic number.
18800672429280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18800672429280 is an abundant number, since it is smaller than the sum of its proper divisors (50532539574048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18800672429280 is a wasteful number, since it uses less digits than its factorization.
18800672429280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 136474169 (or 136474161 counting only the distinct ones).
The product of its (nonzero) digits is 6193152, while the sum is 57.
The spelling of 18800672429280 in words is "eighteen trillion, eight hundred billion, six hundred seventy-two million, four hundred twenty-nine thousand, two hundred eighty".
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