Base | Representation |
---|---|
bin | 10001001001010110… |
… | …001101101000111100 |
3 | 1202112001110200202022 |
4 | 101021112031220330 |
5 | 300201032211423 |
6 | 12242503215312 |
7 | 1221141031040 |
oct | 211126155074 |
9 | 52461420668 |
10 | 18410428988 |
11 | 7898230876 |
12 | 3699747538 |
13 | 1975283a83 |
14 | c69148020 |
15 | 72b42bdc8 |
hex | 44958da3c |
18410428988 has 48 divisors (see below), whose sum is σ = 37270679040. Its totient is φ = 7794215616.
The previous prime is 18410428969. The next prime is 18410428997. The reversal of 18410428988 is 88982401481.
It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.
It is a congruent number.
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, 1067006 + ... + 1084122.
It is an arithmetic number, because the mean of its divisors is an integer number (776472480).
Almost surely, 218410428988 is an apocalyptic number.
It is an amenable number.
18410428988 is an abundant number, since it is smaller than the sum of its proper divisors (18860250052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18410428988 is a wasteful number, since it uses less digits than its factorization.
18410428988 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17594 (or 17592 counting only the distinct ones).
The product of its (nonzero) digits is 1179648, while the sum is 53.
The spelling of 18410428988 in words is "eighteen billion, four hundred ten million, four hundred twenty-eight thousand, nine hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.061 sec. • engine limits •