Base | Representation |
---|---|
bin | 100100000110… |
… | …0110111001000 |
3 | 1022121121000210 |
4 | 1020030313020 |
5 | 14321131143 |
6 | 1513401120 |
7 | 316606620 |
oct | 110146710 |
9 | 38547023 |
10 | 18927048 |
11 | a758198 |
12 | 64091a0 |
13 | 3bc8c4a |
14 | 2729880 |
15 | 19dd033 |
hex | 120cdc8 |
18927048 has 64 divisors (see below), whose sum is σ = 54610560. Its totient is φ = 5354496.
The previous prime is 18927037. The next prime is 18927049. The reversal of 18927048 is 84072981.
It is a junction number, because it is equal to n+sod(n) for n = 18926997 and 18927015.
It is not an unprimeable number, because it can be changed into a prime (18927049) 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, 18486 + ... + 19482.
It is an arithmetic number, because the mean of its divisors is an integer number (853290).
Almost surely, 218927048 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18927048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27305280).
18927048 is an abundant number, since it is smaller than the sum of its proper divisors (35683512).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18927048 is a wasteful number, since it uses less digits than its factorization.
18927048 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1126 (or 1122 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 39.
The square root of 18927048 is about 4350.5227272134. The cubic root of 18927048 is about 266.4982088826.
The spelling of 18927048 in words is "eighteen million, nine hundred twenty-seven thousand, forty-eight".
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