Base | Representation |
---|---|
bin | 11101101000010… |
… | …10100100100000 |
3 | 122022200221110200 |
4 | 32310022210200 |
5 | 1002112241213 |
6 | 40355225200 |
7 | 6105455334 |
oct | 1664124440 |
9 | 568627420 |
10 | 248555808 |
11 | 118337726 |
12 | 6b2a8200 |
13 | 3c658257 |
14 | 250217c4 |
15 | 16c4b273 |
hex | ed0a920 |
248555808 has 54 divisors (see below), whose sum is σ = 707592249. Its totient is φ = 82762752.
The previous prime is 248555771. The next prime is 248555809. The reversal of 248555808 is 808555842.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 158457744 + 90098064 = 12588^2 + 9492^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=11148.
It is not an unprimeable number, because it can be changed into a prime (248555809) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 267088 + ... + 268016.
Almost surely, 2248555808 is an apocalyptic number.
It is an amenable number.
248555808 is an abundant number, since it is smaller than the sum of its proper divisors (459036441).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
248555808 is an frugal number, since it uses more digits than its factorization.
248555808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1874 (or 934 counting only the distinct ones).
The product of its (nonzero) digits is 512000, while the sum is 45.
The square root of 248555808 is about 15765.6527933353. The cubic root of 248555808 is about 628.7451363278.
The spelling of 248555808 in words is "two hundred forty-eight million, five hundred fifty-five thousand, eight hundred eight".
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