Base | Representation |
---|---|
bin | 100000101110101100… |
… | …0101100011111011001 |
3 | 20201102100221111200202 |
4 | 1001131120230133121 |
5 | 2122421233402023 |
6 | 52142233511545 |
7 | 5035521052601 |
oct | 1013530543731 |
9 | 221370844622 |
10 | 70286231513 |
11 | 27898822043 |
12 | 117568725b5 |
13 | 6821834504 |
14 | 358aa43c01 |
15 | 1c65800128 |
hex | 105d62c7d9 |
70286231513 has 2 divisors, whose sum is σ = 70286231514. Its totient is φ = 70286231512.
The previous prime is 70286231423. The next prime is 70286231539. The reversal of 70286231513 is 31513268207.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 61716471184 + 8569760329 = 248428^2 + 92573^2 .
It is an emirp because it is prime and its reverse (31513268207) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 70286231513 - 210 = 70286230489 is a prime.
It is not a weakly prime, because it can be changed into another prime (70286231573) 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, 35143115756 + 35143115757.
It is an arithmetic number, because the mean of its divisors is an integer number (35143115757).
Almost surely, 270286231513 is an apocalyptic number.
It is an amenable number.
70286231513 is a deficient number, since it is larger than the sum of its proper divisors (1).
70286231513 is an equidigital number, since it uses as much as digits as its factorization.
70286231513 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 60480, while the sum is 38.
The spelling of 70286231513 in words is "seventy billion, two hundred eighty-six million, two hundred thirty-one thousand, five hundred thirteen".
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