Base | Representation |
---|---|
bin | 10110110010010001110010… |
… | …101111111100100011010111 |
3 | 111010211011221200212200202021 |
4 | 112302101302233330203113 |
5 | 101113333341120343222 |
6 | 553044445411154011 |
7 | 30052041211342663 |
oct | 2662216257744327 |
9 | 433734850780667 |
10 | 100212102121687 |
11 | 29a2679413a536 |
12 | b2a593a2a5907 |
13 | 43bbc6480406a |
14 | 1aa64122d58a3 |
15 | b8bb30437ac7 |
hex | 5b2472bfc8d7 |
100212102121687 has 2 divisors, whose sum is σ = 100212102121688. Its totient is φ = 100212102121686.
The previous prime is 100212102121601. The next prime is 100212102121721. The reversal of 100212102121687 is 786121201212001.
It is an a-pointer prime, because the next prime (100212102121721) can be obtained adding 100212102121687 to its sum of digits (34).
It is a strong prime.
It is an emirp because it is prime and its reverse (786121201212001) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-100212102121687 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (100212102121387) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106051060843 + 50106051060844.
It is an arithmetic number, because the mean of its divisors is an integer number (50106051060844).
Almost surely, 2100212102121687 is an apocalyptic number.
100212102121687 is a deficient number, since it is larger than the sum of its proper divisors (1).
100212102121687 is an equidigital number, since it uses as much as digits as its factorization.
100212102121687 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5376, while the sum is 34.
Adding to 100212102121687 its reverse (786121201212001), we get a palindrome (886333303333688).
The spelling of 100212102121687 in words is "one hundred trillion, two hundred twelve billion, one hundred two million, one hundred twenty-one thousand, six hundred eighty-seven".
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