Base | Representation |
---|---|
bin | 1001110101000101010111… |
… | …0110110111000011100101 |
3 | 1102021012020201000110220202 |
4 | 2131101111312313003211 |
5 | 2404032410002131011 |
6 | 34552533255440245 |
7 | 2163551601430301 |
oct | 235212566670345 |
9 | 42235221013822 |
10 | 10807578161381 |
11 | 3497517134601 |
12 | 12666b8086085 |
13 | 6051c512b451 |
14 | 295137b10d01 |
15 | 13b1e36a623b |
hex | 9d455db70e5 |
10807578161381 has 2 divisors, whose sum is σ = 10807578161382. Its totient is φ = 10807578161380.
The previous prime is 10807578161311. The next prime is 10807578161423. The reversal of 10807578161381 is 18316187570801.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10616551473025 + 191026688356 = 3258305^2 + 437066^2 .
It is an emirp because it is prime and its reverse (18316187570801) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10807578161381 - 226 = 10807511052517 is a prime.
It is a super-2 number, since 2×108075781613812 (a number of 27 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10807578161311) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5403789080690 + 5403789080691.
It is an arithmetic number, because the mean of its divisors is an integer number (5403789080691).
Almost surely, 210807578161381 is an apocalyptic number.
It is an amenable number.
10807578161381 is a deficient number, since it is larger than the sum of its proper divisors (1).
10807578161381 is an equidigital number, since it uses as much as digits as its factorization.
10807578161381 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2257920, while the sum is 56.
The spelling of 10807578161381 in words is "ten trillion, eight hundred seven billion, five hundred seventy-eight million, one hundred sixty-one thousand, three hundred eighty-one".
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