Base | Representation |
---|---|
bin | 110110101100100101… |
… | …111111111000010101 |
3 | 12121121000021010220112 |
4 | 312230211333320111 |
5 | 1430234413420411 |
6 | 42551424212405 |
7 | 4146250415252 |
oct | 665445777025 |
9 | 177530233815 |
10 | 58730216981 |
11 | 229a8749307 |
12 | b47076a105 |
13 | 56cc671ba7 |
14 | 2bb1d9a429 |
15 | 17db030b8b |
hex | dac97fe15 |
58730216981 has 2 divisors, whose sum is σ = 58730216982. Its totient is φ = 58730216980.
The previous prime is 58730216947. The next prime is 58730216983. The reversal of 58730216981 is 18961203785.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 32612748100 + 26117468881 = 180590^2 + 161609^2 .
It is a cyclic number.
It is not a de Polignac number, because 58730216981 - 230 = 57656475157 is a prime.
It is a super-2 number, since 2×587302169812 (a number of 22 digits) contains 22 as substring.
Together with 58730216983, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (58730216983) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29365108490 + 29365108491.
It is an arithmetic number, because the mean of its divisors is an integer number (29365108491).
Almost surely, 258730216981 is an apocalyptic number.
It is an amenable number.
58730216981 is a deficient number, since it is larger than the sum of its proper divisors (1).
58730216981 is an equidigital number, since it uses as much as digits as its factorization.
58730216981 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 725760, while the sum is 50.
The spelling of 58730216981 in words is "fifty-eight billion, seven hundred thirty million, two hundred sixteen thousand, nine hundred eighty-one".
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