Base | Representation |
---|---|
bin | 1001001010010011100… |
… | …0110001011100101111 |
3 | 120001020102221221202202 |
4 | 2102210320301130233 |
5 | 10034311100344222 |
6 | 200145102212115 |
7 | 14241102601205 |
oct | 2224470613457 |
9 | 501212857682 |
10 | 157385168687 |
11 | 6082390874a |
12 | 26603b8403b |
13 | 11ac2603066 |
14 | 7890531075 |
15 | 416212c892 |
hex | 24a4e3172f |
157385168687 has 2 divisors, whose sum is σ = 157385168688. Its totient is φ = 157385168686.
The previous prime is 157385168671. The next prime is 157385168693. The reversal of 157385168687 is 786861583751.
157385168687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is an emirp because it is prime and its reverse (786861583751) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 157385168687 - 24 = 157385168671 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (157385168627) 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 as a sum of consecutive naturals, namely, 78692584343 + 78692584344.
It is an arithmetic number, because the mean of its divisors is an integer number (78692584344).
Almost surely, 2157385168687 is an apocalyptic number.
157385168687 is a deficient number, since it is larger than the sum of its proper divisors (1).
157385168687 is an equidigital number, since it uses as much as digits as its factorization.
157385168687 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 67737600, while the sum is 65.
The spelling of 157385168687 in words is "one hundred fifty-seven billion, three hundred eighty-five million, one hundred sixty-eight thousand, six hundred eighty-seven".
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