Base | Representation |
---|---|
bin | 1101110011111… |
… | …1010011111111 |
3 | 11001000012101212 |
4 | 3130333103333 |
5 | 104312243012 |
6 | 5425355035 |
7 | 1302256031 |
oct | 334772377 |
9 | 131005355 |
10 | 57931007 |
11 | 2a778472 |
12 | 17498a7b |
13 | c004304 |
14 | 799dc51 |
15 | 5144b22 |
hex | 373f4ff |
57931007 has 2 divisors, whose sum is σ = 57931008. Its totient is φ = 57931006.
The previous prime is 57930911. The next prime is 57931021. The reversal of 57931007 is 70013975.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 57931007 - 210 = 57929983 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (57931037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28965503 + 28965504.
It is an arithmetic number, because the mean of its divisors is an integer number (28965504).
Almost surely, 257931007 is an apocalyptic number.
57931007 is a deficient number, since it is larger than the sum of its proper divisors (1).
57931007 is an equidigital number, since it uses as much as digits as its factorization.
57931007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 6615, while the sum is 32.
The square root of 57931007 is about 7611.2421456685. The cubic root of 57931007 is about 386.9341184560.
The spelling of 57931007 in words is "fifty-seven million, nine hundred thirty-one thousand, seven".
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