Base | Representation |
---|---|
bin | 101111000010101010… |
… | …0101001011011010101 |
3 | 100122202022220001020101 |
4 | 1132011110221123111 |
5 | 3123342340430401 |
6 | 114224115134101 |
7 | 10204252405435 |
oct | 1360524513325 |
9 | 318668801211 |
10 | 101021030101 |
11 | 3992a813132 |
12 | 176b38a4331 |
13 | 96ac200b74 |
14 | 4c648c42c5 |
15 | 2963bc2101 |
hex | 17855296d5 |
101021030101 has 4 divisors (see below), whose sum is σ = 101275491532. Its totient is φ = 100766568672.
The previous prime is 101021030081. The next prime is 101021030167. The reversal of 101021030101 is 101030120101.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 57719582001 + 43301448100 = 240249^2 + 208090^2 .
It is a cyclic number.
It is not a de Polignac number, because 101021030101 - 217 = 101020899029 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (101021030191) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127230120 + ... + 127230913.
It is an arithmetic number, because the mean of its divisors is an integer number (25318872883).
Almost surely, 2101021030101 is an apocalyptic number.
It is an amenable number.
101021030101 is a deficient number, since it is larger than the sum of its proper divisors (254461431).
101021030101 is an equidigital number, since it uses as much as digits as its factorization.
101021030101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 254461430.
The product of its (nonzero) digits is 6, while the sum is 10.
Adding to 101021030101 its reverse (101030120101), we get a palindrome (202051150202).
The spelling of 101021030101 in words is "one hundred one billion, twenty-one million, thirty thousand, one hundred one".
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