Base | Representation |
---|---|
bin | 10001001111000011… |
… | …101010101010001010 |
3 | 1202202201201220121010 |
4 | 101033003222222022 |
5 | 300400043333120 |
6 | 12300204424350 |
7 | 1223413235343 |
oct | 211703525212 |
9 | 52681656533 |
10 | 18506230410 |
11 | 79373148a8 |
12 | 37058480b6 |
13 | 198c0874c5 |
14 | c77b650ca |
15 | 734a527e0 |
hex | 44f0eaa8a |
18506230410 has 32 divisors (see below), whose sum is σ = 44426309760. Its totient is φ = 4933732928.
The previous prime is 18506230409. The next prime is 18506230423. The reversal of 18506230410 is 1403260581.
It is a Harshad number since it is a multiple of its sum of digits (30).
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, 43531 + ... + 197249.
It is an arithmetic number, because the mean of its divisors is an integer number (1388322180).
Almost surely, 218506230410 is an apocalyptic number.
18506230410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18506230410 is an abundant number, since it is smaller than the sum of its proper divisors (25920079350).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18506230410 is a wasteful number, since it uses less digits than its factorization.
18506230410 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 157742.
The product of its (nonzero) digits is 5760, while the sum is 30.
Adding to 18506230410 its reverse (1403260581), we get a palindrome (19909490991).
The spelling of 18506230410 in words is "eighteen billion, five hundred six million, two hundred thirty thousand, four hundred ten".
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