Base | Representation |
---|---|
bin | 100110101000001… |
… | …111100110000001 |
3 | 1200011111001220020 |
4 | 212220033212001 |
5 | 2311402140331 |
6 | 144150404053 |
7 | 22026423156 |
oct | 4650174601 |
9 | 1604431806 |
10 | 648083841 |
11 | 30290aa89 |
12 | 161060629 |
13 | a4362a82 |
14 | 6210222d |
15 | 3bd69c96 |
hex | 26a0f981 |
648083841 has 16 divisors (see below), whose sum is σ = 882719424. Its totient is φ = 422794944.
The previous prime is 648083833. The next prime is 648083873. The reversal of 648083841 is 148380846.
It is not a de Polignac number, because 648083841 - 23 = 648083833 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 648083793 and 648083802.
It is not an unprimeable number, because it can be changed into a prime (648083801) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57990 + ... + 68256.
It is an arithmetic number, because the mean of its divisors is an integer number (55169964).
Almost surely, 2648083841 is an apocalyptic number.
It is an amenable number.
648083841 is a deficient number, since it is larger than the sum of its proper divisors (234635583).
648083841 is a wasteful number, since it uses less digits than its factorization.
648083841 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10720.
The product of its (nonzero) digits is 147456, while the sum is 42.
The square root of 648083841 is about 25457.4908622197. The cubic root of 648083841 is about 865.3870614534.
The spelling of 648083841 in words is "six hundred forty-eight million, eighty-three thousand, eight hundred forty-one".
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