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31074293141 is a prime number
BaseRepresentation
bin11100111100001011…
…000001010110010101
32222012121202122111222
4130330023001112111
51002120004340031
622135245540125
72150023063553
oct347413012625
988177678458
1031074293141
11121a66a0401
126032874645
132c12b14c08
14170adb4bd3
15c1d0d2e7b
hex73c2c1595

31074293141 has 2 divisors, whose sum is σ = 31074293142. Its totient is φ = 31074293140.

The previous prime is 31074293077. The next prime is 31074293153. The reversal of 31074293141 is 14139247013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17121722500 + 13952570641 = 130850^2 + 118121^2 .

It is an emirp because it is prime and its reverse (14139247013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31074293141 - 26 = 31074293077 is a prime.

It is a super-2 number, since 2×310742931412 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31074293161) 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, 15537146570 + 15537146571.

It is an arithmetic number, because the mean of its divisors is an integer number (15537146571).

Almost surely, 231074293141 is an apocalyptic number.

It is an amenable number.

31074293141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31074293141 is an equidigital number, since it uses as much as digits as its factorization.

31074293141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 31074293141 in words is "thirty-one billion, seventy-four million, two hundred ninety-three thousand, one hundred forty-one".