Base | Representation |
---|---|
bin | 10010110110101010… |
… | …01101010111110111 |
3 | 222010102202002212211 |
4 | 21123111031113313 |
5 | 131212242033142 |
6 | 4352230154251 |
7 | 505560313351 |
oct | 113325152767 |
9 | 28112662784 |
10 | 10122221047 |
11 | 4324803544 |
12 | 1b65ab2987 |
13 | c54111313 |
14 | 6c049a0d1 |
15 | 3e39a1917 |
hex | 25b54d5f7 |
10122221047 has 2 divisors, whose sum is σ = 10122221048. Its totient is φ = 10122221046.
The previous prime is 10122221033. The next prime is 10122221051. The reversal of 10122221047 is 74012222101.
It is a strong prime.
It is an emirp because it is prime and its reverse (74012222101) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-10122221047 is a prime.
It is a super-3 number, since 3×101222210473 (a number of 31 digits) contains 333 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10122221147) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061110523 + 5061110524.
It is an arithmetic number, because the mean of its divisors is an integer number (5061110524).
Almost surely, 210122221047 is an apocalyptic number.
10122221047 is a deficient number, since it is larger than the sum of its proper divisors (1).
10122221047 is an equidigital number, since it uses as much as digits as its factorization.
10122221047 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 448, while the sum is 22.
Adding to 10122221047 its reverse (74012222101), we get a palindrome (84134443148).
The spelling of 10122221047 in words is "ten billion, one hundred twenty-two million, two hundred twenty-one thousand, forty-seven".
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