Base | Representation |
---|---|
bin | 10110111101101111100101… |
… | …001011101011110100101111 |
3 | 111020121111122201122022120212 |
4 | 112331233211023223310233 |
5 | 101214241000224322431 |
6 | 554450432050533035 |
7 | 30163003115401625 |
oct | 2675574513536457 |
9 | 436544581568525 |
10 | 101000001010991 |
11 | 2a1aa9505626a5 |
12 | b3b2587b9717b |
13 | 444834a6a69b4 |
14 | 1ad25d743d515 |
15 | ba239618572b |
hex | 5bdbe52ebd2f |
101000001010991 has 2 divisors, whose sum is σ = 101000001010992. Its totient is φ = 101000001010990.
The previous prime is 101000001010973. The next prime is 101000001011017. The reversal of 101000001010991 is 199010100000101.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 101000001010991 - 230 = 100998927269167 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (101000001018991) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (31) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500000505495 + 50500000505496.
It is an arithmetic number, because the mean of its divisors is an integer number (50500000505496).
Almost surely, 2101000001010991 is an apocalyptic number.
101000001010991 is a deficient number, since it is larger than the sum of its proper divisors (1).
101000001010991 is an equidigital number, since it uses as much as digits as its factorization.
101000001010991 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 81, while the sum is 23.
The spelling of 101000001010991 in words is "one hundred one trillion, one million, ten thousand, nine hundred ninety-one".
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