Base | Representation |
---|---|
bin | 110101110101101001… |
… | …001100000101110001 |
3 | 12112012202112020112120 |
4 | 311311221030011301 |
5 | 1421342411302140 |
6 | 42320132344453 |
7 | 4114354332603 |
oct | 656551140561 |
9 | 175182466476 |
10 | 57808306545 |
11 | 22575311360 |
12 | b253a75129 |
13 | 55b3676662 |
14 | 2b25779173 |
15 | 17851271d0 |
hex | d75a4c171 |
57808306545 has 32 divisors (see below), whose sum is σ = 102805593984. Its totient is φ = 27499430400.
The previous prime is 57808306541. The next prime is 57808306579. The reversal of 57808306545 is 54560380875.
It is a happy number.
57808306545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 57808306545 - 22 = 57808306541 is a prime.
It is not an unprimeable number, because it can be changed into a prime (57808306541) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3296476 + ... + 3313965.
It is an arithmetic number, because the mean of its divisors is an integer number (3212674812).
Almost surely, 257808306545 is an apocalyptic number.
57808306545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.
It is an amenable number.
57808306545 is a deficient number, since it is larger than the sum of its proper divisors (44997287439).
57808306545 is a wasteful number, since it uses less digits than its factorization.
57808306545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6610513.
The product of its (nonzero) digits is 4032000, while the sum is 51.
The spelling of 57808306545 in words is "fifty-seven billion, eight hundred eight million, three hundred six thousand, five hundred forty-five".
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