Base | Representation |
---|---|
bin | 1000011010011010101100… |
… | …01110001101010101011000 |
3 | 2102111120101210112201010121 |
4 | 10031031112032031111120 |
5 | 4411100213400142310 |
6 | 103202420121123024 |
7 | 3616400020314565 |
oct | 415152616152530 |
9 | 72446353481117 |
10 | 18499870709080 |
11 | 59928297a7552 |
12 | 20a9495329474 |
13 | a426b816c637 |
14 | 47d58177786c |
15 | 22135649d0da |
hex | 10d35638d558 |
18499870709080 has 32 divisors (see below), whose sum is σ = 41663866960800. Its totient is φ = 7392986885376.
The previous prime is 18499870709009. The next prime is 18499870709101. The reversal of 18499870709080 is 8090707899481.
It is a super-2 number, since 2×184998707090802 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
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, 217500645 + ... + 217585684.
It is an arithmetic number, because the mean of its divisors is an integer number (1301995842525).
Almost surely, 218499870709080 is an apocalyptic number.
18499870709080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18499870709080 is an abundant number, since it is smaller than the sum of its proper divisors (23163996251720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18499870709080 is a wasteful number, since it uses less digits than its factorization.
18499870709080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 435087403 (or 435087399 counting only the distinct ones).
The product of its (nonzero) digits is 73156608, while the sum is 70.
The spelling of 18499870709080 in words is "eighteen trillion, four hundred ninety-nine billion, eight hundred seventy million, seven hundred nine thousand, eighty".
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