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65282131 is a prime number
BaseRepresentation
bin1111100100001…
…0000001010011
311112211200020201
43321002001103
5113203012011
610251120031
71421613625
oct371020123
9145750221
1065282131
1133939482
1219a43017
13106a92a5
148954c15
155ae7cc1
hex3e42053

65282131 has 2 divisors, whose sum is σ = 65282132. Its totient is φ = 65282130.

The previous prime is 65282101. The next prime is 65282141. The reversal of 65282131 is 13128256.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65282131 - 25 = 65282099 is a prime.

It is a super-2 number, since 2×652821312 = 8523513255802322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65282131.

It is not a weakly prime, because it can be changed into another prime (65282101) 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, 32641065 + 32641066.

It is an arithmetic number, because the mean of its divisors is an integer number (32641066).

Almost surely, 265282131 is an apocalyptic number.

65282131 is a deficient number, since it is larger than the sum of its proper divisors (1).

65282131 is an equidigital number, since it uses as much as digits as its factorization.

65282131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 65282131 is about 8079.7358248893. The cubic root of 65282131 is about 402.6534651346.

The spelling of 65282131 in words is "sixty-five million, two hundred eighty-two thousand, one hundred thirty-one".