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83870041 is a prime number
BaseRepresentation
bin1001111111111…
…00000101011001
312211211001001211
410333330011121
5132432320131
612153343121
72035612033
oct477740531
9184731054
1083870041
1143384892
1224107aa1
13144b6a58
14b1d2c53
15756a5b1
hex4ffc159

83870041 has 2 divisors, whose sum is σ = 83870042. Its totient is φ = 83870040.

The previous prime is 83870021. The next prime is 83870053. The reversal of 83870041 is 14007838.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74995600 + 8874441 = 8660^2 + 2979^2 .

It is a cyclic number.

It is not a de Polignac number, because 83870041 - 213 = 83861849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83869985 and 83870012.

It is not a weakly prime, because it can be changed into another prime (83870021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41935020 + 41935021.

It is an arithmetic number, because the mean of its divisors is an integer number (41935021).

Almost surely, 283870041 is an apocalyptic number.

It is an amenable number.

83870041 is a deficient number, since it is larger than the sum of its proper divisors (1).

83870041 is an equidigital number, since it uses as much as digits as its factorization.

83870041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 83870041 is about 9158.0588008595. The cubic root of 83870041 is about 437.7259410915.

Adding to 83870041 its reverse (14007838), we get a palindrome (97877879).

The spelling of 83870041 in words is "eighty-three million, eight hundred seventy thousand, forty-one".