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64862141 is a prime number
BaseRepresentation
bin1111011101101…
…1011110111101
311112001100010112
43313123132331
5113101042031
610234115405
71415214311
oct367333675
9145040115
1064862141
1133681983
121987bb65
1310590086
148885b41
155a6362b
hex3ddb7bd

64862141 has 2 divisors, whose sum is σ = 64862142. Its totient is φ = 64862140.

The previous prime is 64862131. The next prime is 64862153. The reversal of 64862141 is 14126846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 9672100 = 7429^2 + 3110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-64862141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64862098 and 64862107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64862111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32431070 + 32431071.

It is an arithmetic number, because the mean of its divisors is an integer number (32431071).

Almost surely, 264862141 is an apocalyptic number.

It is an amenable number.

64862141 is a deficient number, since it is larger than the sum of its proper divisors (1).

64862141 is an equidigital number, since it uses as much as digits as its factorization.

64862141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 32.

The square root of 64862141 is about 8053.7035579912. The cubic root of 64862141 is about 401.7881217240.

Adding to 64862141 its reverse (14126846), we get a palindrome (78988987).

The spelling of 64862141 in words is "sixty-four million, eight hundred sixty-two thousand, one hundred forty-one".