Base | Representation |
---|---|
bin | 1001011111001… |
… | …1100110111011 |
3 | 2202212210122202 |
4 | 2113303212323 |
5 | 40141421011 |
6 | 3540540415 |
7 | 662152535 |
oct | 227634673 |
9 | 82783582 |
10 | 39795131 |
11 | 20510742 |
12 | 113b170b |
13 | 832451c |
14 | 53dc855 |
15 | 376123b |
hex | 25f39bb |
39795131 has 2 divisors, whose sum is σ = 39795132. Its totient is φ = 39795130.
The previous prime is 39795127. The next prime is 39795149. The reversal of 39795131 is 13159793.
It is a weak prime.
It is an emirp because it is prime and its reverse (13159793) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 39795131 - 22 = 39795127 is a prime.
It is a super-2 number, since 2×397951312 = 3167304902614322, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (39795121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19897565 + 19897566.
It is an arithmetic number, because the mean of its divisors is an integer number (19897566).
Almost surely, 239795131 is an apocalyptic number.
39795131 is a deficient number, since it is larger than the sum of its proper divisors (1).
39795131 is an equidigital number, since it uses as much as digits as its factorization.
39795131 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 25515, while the sum is 38.
The square root of 39795131 is about 6308.3382122394. The cubic root of 39795131 is about 341.4103212478.
The spelling of 39795131 in words is "thirty-nine million, seven hundred ninety-five thousand, one hundred thirty-one".
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