Base | Representation |
---|---|
bin | 10011111100001000… |
… | …110010011000011010 |
3 | 2001021002202021022221 |
4 | 103330020302120122 |
5 | 322321431444010 |
6 | 13500255134254 |
7 | 1355363155555 |
oct | 237410623032 |
9 | 61232667287 |
10 | 21410031130 |
11 | 909744a304 |
12 | 419621438a |
13 | 2032859197 |
14 | 107168969c |
15 | 854942dda |
hex | 4fc23261a |
21410031130 has 32 divisors (see below), whose sum is σ = 39592904976. Its totient is φ = 8329757184.
The previous prime is 21410031127. The next prime is 21410031131. The reversal of 21410031130 is 3113001412.
It can be written as a sum of positive squares in 8 ways, for example, as 20312235441 + 1097795689 = 142521^2 + 33133^2 .
It is not an unprimeable number, because it can be changed into a prime (21410031131) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1352622 + ... + 1368358.
Almost surely, 221410031130 is an apocalyptic number.
21410031130 is a deficient number, since it is larger than the sum of its proper divisors (18182873846).
21410031130 is a wasteful number, since it uses less digits than its factorization.
21410031130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19458.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 21410031130 its reverse (3113001412), we get a palindrome (24523032542).
The spelling of 21410031130 in words is "twenty-one billion, four hundred ten million, thirty-one thousand, one hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •