Base | Representation |
---|---|
bin | 1000001111110111100010… |
… | …10100011000101110010000 |
3 | 2101012220210122001011022200 |
4 | 10013323301110120232100 |
5 | 4334130344021430122 |
6 | 102324112400203200 |
7 | 3551245460114061 |
oct | 407736124305620 |
9 | 71186718034280 |
10 | 18137400576912 |
11 | 586303486a351 |
12 | 204b196909500 |
13 | a17470c111a6 |
14 | 469bd7aa8568 |
15 | 216bde7b05ac |
hex | 107ef1518b90 |
18137400576912 has 60 divisors (see below), whose sum is σ = 50759825320620. Its totient is φ = 6045765110784.
The previous prime is 18137400576829. The next prime is 18137400577007. The reversal of 18137400576912 is 21967500473181.
18137400576912 is a `hidden beast` number, since 1 + 8 + 13 + 7 + 40 + 0 + 576 + 9 + 12 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 16320177950976 + 1817222625936 = 4039824^2 + 1348044^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39853108 + ... + 40305644.
It is an arithmetic number, because the mean of its divisors is an integer number (845997088677).
It is a 1-persistent number, because it is pandigital, but 2⋅18137400576912 = 36274801153824 is not.
Almost surely, 218137400576912 is an apocalyptic number.
18137400576912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
18137400576912 is an abundant number, since it is smaller than the sum of its proper divisors (32622424743708).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18137400576912 is a wasteful number, since it uses less digits than its factorization.
18137400576912 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 730880 (or 730871 counting only the distinct ones).
The product of its (nonzero) digits is 2540160, while the sum is 54.
The spelling of 18137400576912 in words is "eighteen trillion, one hundred thirty-seven billion, four hundred million, five hundred seventy-six thousand, nine hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •