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58730981 is a prime number
BaseRepresentation
bin1110000000001…
…0100111100101
311002111211202112
43200002213211
5110013342411
65454450405
71312130231
oct340024745
9132454675
1058730981
1130174501
1217803a05
13c22447a
147b2b5c1
155251b8b
hex38029e5

58730981 has 2 divisors, whose sum is σ = 58730982. Its totient is φ = 58730980.

The previous prime is 58730963. The next prime is 58730993. The reversal of 58730981 is 18903785.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44222500 + 14508481 = 6650^2 + 3809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-58730981 is a prime.

It is a super-2 number, since 2×587309812 = 6898656258444722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58730911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29365490 + 29365491.

It is an arithmetic number, because the mean of its divisors is an integer number (29365491).

Almost surely, 258730981 is an apocalyptic number.

It is an amenable number.

58730981 is a deficient number, since it is larger than the sum of its proper divisors (1).

58730981 is an equidigital number, since it uses as much as digits as its factorization.

58730981 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 41.

The square root of 58730981 is about 7663.6140951903. The cubic root of 58730981 is about 388.7070507377.

The spelling of 58730981 in words is "fifty-eight million, seven hundred thirty thousand, nine hundred eighty-one".