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7421054131 is a prime number
BaseRepresentation
bin1101110100101010…
…00100110010110011
3201011012000121110201
412322111010302303
5110144242213011
63224214540031
7351620630221
oct67225046263
921135017421
107421054131
113168a9a897
121531367617
139136096ba
14505841b11
152d678acc1
hex1ba544cb3

7421054131 has 2 divisors, whose sum is σ = 7421054132. Its totient is φ = 7421054130.

The previous prime is 7421054101. The next prime is 7421054171. The reversal of 7421054131 is 1314501247.

It is a weak prime.

It is an emirp because it is prime and its reverse (1314501247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7421054131 - 211 = 7421052083 is a prime.

It is a super-2 number, since 2×74210541312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7421054131.

It is not a weakly prime, because it can be changed into another prime (7421054101) 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, 3710527065 + 3710527066.

It is an arithmetic number, because the mean of its divisors is an integer number (3710527066).

Almost surely, 27421054131 is an apocalyptic number.

7421054131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421054131 is an equidigital number, since it uses as much as digits as its factorization.

7421054131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 7421054131 is about 86145.5404011142. The cubic root of 7421054131 is about 1950.5415222748.

Adding to 7421054131 its reverse (1314501247), we get a palindrome (8735555378).

The spelling of 7421054131 in words is "seven billion, four hundred twenty-one million, fifty-four thousand, one hundred thirty-one".