Base | Representation |
---|---|
bin | 1011100101010… |
… | …0000110101001 |
3 | 10101102001211200 |
4 | 2321110012221 |
5 | 44414011420 |
6 | 4453114413 |
7 | 1126625460 |
oct | 271240651 |
9 | 111361750 |
10 | 48578985 |
11 | 25470124 |
12 | 14328a09 |
13 | a0ab680 |
14 | 66479d7 |
15 | 43e8b90 |
hex | 2e541a9 |
48578985 has 48 divisors (see below), whose sum is σ = 103643904. Its totient is φ = 20497536.
The previous prime is 48578983. The next prime is 48579001. The reversal of 48578985 is 58987584.
48578985 is a `hidden beast` number, since 485 + 7 + 89 + 85 = 666.
It is not a de Polignac number, because 48578985 - 21 = 48578983 is a prime.
It is not an unprimeable number, because it can be changed into a prime (48578983) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1837 + ... + 10026.
It is an arithmetic number, because the mean of its divisors is an integer number (2159248).
Almost surely, 248578985 is an apocalyptic number.
48578985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
It is an amenable number.
48578985 is an abundant number, since it is smaller than the sum of its proper divisors (55064919).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
48578985 is a wasteful number, since it uses less digits than its factorization.
48578985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11894 (or 11891 counting only the distinct ones).
The product of its digits is 3225600, while the sum is 54.
The square root of 48578985 is about 6969.8626241842. The cubic root of 48578985 is about 364.8795123671.
The spelling of 48578985 in words is "forty-eight million, five hundred seventy-eight thousand, nine hundred eighty-five".
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