Base | Representation |
---|---|
bin | 111101000010110… |
… | …000011101110101 |
3 | 2122101002100100011 |
4 | 331002300131311 |
5 | 4044134223411 |
6 | 245342420221 |
7 | 34243662304 |
oct | 7502603565 |
9 | 2571070304 |
10 | 1024132981 |
11 | 4861072a3 |
12 | 246b91671 |
13 | 134239861 |
14 | 9a03043b |
15 | 5ed9bc21 |
hex | 3d0b0775 |
1024132981 has 2 divisors, whose sum is σ = 1024132982. Its totient is φ = 1024132980.
The previous prime is 1024132969. The next prime is 1024133009. The reversal of 1024132981 is 1892314201.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 996664900 + 27468081 = 31570^2 + 5241^2 .
It is a cyclic number.
It is not a de Polignac number, because 1024132981 - 213 = 1024124789 is a prime.
It is a super-2 number, since 2×10241329812 = 2097696725543892722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1024132181) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512066490 + 512066491.
It is an arithmetic number, because the mean of its divisors is an integer number (512066491).
Almost surely, 21024132981 is an apocalyptic number.
It is an amenable number.
1024132981 is a deficient number, since it is larger than the sum of its proper divisors (1).
1024132981 is an equidigital number, since it uses as much as digits as its factorization.
1024132981 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3456, while the sum is 31.
The square root of 1024132981 is about 32002.0777606705. The cubic root of 1024132981 is about 1007.9804696838.
The spelling of 1024132981 in words is "one billion, twenty-four million, one hundred thirty-two thousand, nine hundred eighty-one".
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