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71574130231 is a prime number
BaseRepresentation
bin100001010101000100…
…1101000111000110111
320211202010100112121021
41002222021220320313
52133040434131411
652514122002011
75112450032422
oct1025211507067
9224663315537
1071574130231
112839980444a
1211a56046307
1369985c3366
14366dad49b9
151cdd8eea71
hex10aa268e37

71574130231 has 2 divisors, whose sum is σ = 71574130232. Its totient is φ = 71574130230.

The previous prime is 71574130193. The next prime is 71574130333. The reversal of 71574130231 is 13203147517.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71574130231 - 29 = 71574129719 is a prime.

It is a super-2 number, since 2×715741302312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71574130531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35787065115 + 35787065116.

It is an arithmetic number, because the mean of its divisors is an integer number (35787065116).

Almost surely, 271574130231 is an apocalyptic number.

71574130231 is a deficient number, since it is larger than the sum of its proper divisors (1).

71574130231 is an equidigital number, since it uses as much as digits as its factorization.

71574130231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

Adding to 71574130231 its reverse (13203147517), we get a palindrome (84777277748).

The spelling of 71574130231 in words is "seventy-one billion, five hundred seventy-four million, one hundred thirty thousand, two hundred thirty-one".