Base | Representation |
---|---|
bin | 1000001101010110010010… |
… | …10100100101001010000000 |
3 | 2100220122100101121000101210 |
4 | 10012223021110211022000 |
5 | 4331221100012141110 |
6 | 102220234212330120 |
7 | 3542062254025053 |
oct | 406531124451200 |
9 | 70818311530353 |
10 | 18050830193280 |
11 | 582a350072855 |
12 | 2036456613940 |
13 | a0c2557b4211 |
14 | 465944486a9a |
15 | 21482458b520 |
hex | 106ac9525280 |
18050830193280 has 128 divisors (see below), whose sum is σ = 58622625745920. Its totient is φ = 4722732904448.
The previous prime is 18050830193269. The next prime is 18050830193293. The reversal of 18050830193280 is 8239103805081.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88591392 + ... + 88794911.
It is an arithmetic number, because the mean of its divisors is an integer number (457989263640).
Almost surely, 218050830193280 is an apocalyptic number.
18050830193280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18050830193280 is an abundant number, since it is smaller than the sum of its proper divisors (40571795552640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18050830193280 is a wasteful number, since it uses less digits than its factorization.
18050830193280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 177386378 (or 177386366 counting only the distinct ones).
The product of its (nonzero) digits is 414720, while the sum is 48.
The spelling of 18050830193280 in words is "eighteen trillion, fifty billion, eight hundred thirty million, one hundred ninety-three thousand, two hundred eighty".
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