Base | Representation |
---|---|
bin | 100110101011010… |
… | …000100111111000 |
3 | 1200012222020110110 |
4 | 212223100213320 |
5 | 2312102440423 |
6 | 144215344320 |
7 | 22036225233 |
oct | 4653204770 |
9 | 1605866413 |
10 | 648874488 |
11 | 303300009 |
12 | 1613820a0 |
13 | a457b902 |
14 | 6226a41a |
15 | 3be74193 |
hex | 26ad09f8 |
648874488 has 16 divisors (see below), whose sum is σ = 1622186280. Its totient is φ = 216291488.
The previous prime is 648874483. The next prime is 648874489. The reversal of 648874488 is 884478846.
648874488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (648874481) 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, 13518195 + ... + 13518242.
Almost surely, 2648874488 is an apocalyptic number.
It is an amenable number.
648874488 is an abundant number, since it is smaller than the sum of its proper divisors (973311792).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
648874488 is a wasteful number, since it uses less digits than its factorization.
648874488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 27036446 (or 27036442 counting only the distinct ones).
The product of its digits is 11010048, while the sum is 57.
The square root of 648874488 is about 25473.0148981231. The cubic root of 648874488 is about 865.7388357080.
The spelling of 648874488 in words is "six hundred forty-eight million, eight hundred seventy-four thousand, four hundred eighty-eight".
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