Base | Representation |
---|---|
bin | 100010101100… |
… | …1001001110000 |
3 | 1021020012022021 |
4 | 1011121021300 |
5 | 14124102320 |
6 | 1445521224 |
7 | 310422604 |
oct | 105311160 |
9 | 37205267 |
10 | 18190960 |
11 | a2a5157 |
12 | 6113214 |
13 | 39cbba8 |
14 | 25b7504 |
15 | 18e4daa |
hex | 1159270 |
18190960 has 20 divisors (see below), whose sum is σ = 42294168. Its totient is φ = 7276352.
The previous prime is 18190919. The next prime is 18190967. The reversal of 18190960 is 6909181.
It is a tau number, because it is divible by the number of its divisors (20).
It is a super-2 number, since 2×181909602 = 661822051443200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18190967) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113614 + ... + 113773.
Almost surely, 218190960 is an apocalyptic number.
18190960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
18190960 is an abundant number, since it is smaller than the sum of its proper divisors (24103208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18190960 is a wasteful number, since it uses less digits than its factorization.
18190960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 227400 (or 227394 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 34.
The square root of 18190960 is about 4265.0861656009. The cubic root of 18190960 is about 262.9976530703.
The spelling of 18190960 in words is "eighteen million, one hundred ninety thousand, nine hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •