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83008531 is a prime number
BaseRepresentation
bin1001111001010…
…01110000010011
312210012021022001
410330221300103
5132222233111
612123054431
72025363244
oct474516023
9183167261
1083008531
11429465a1
1223971417
1314274898
14b04accb
15744a1c1
hex4f29c13

83008531 has 2 divisors, whose sum is σ = 83008532. Its totient is φ = 83008530.

The previous prime is 83008529. The next prime is 83008537. The reversal of 83008531 is 13580038.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83008531 - 21 = 83008529 is a prime.

It is a super-2 number, since 2×830085312 = 13780832437555922, which contains 22 as substring.

Together with 83008529, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 83008531.

It is not a weakly prime, because it can be changed into another prime (83008537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41504265 + 41504266.

It is an arithmetic number, because the mean of its divisors is an integer number (41504266).

Almost surely, 283008531 is an apocalyptic number.

83008531 is a deficient number, since it is larger than the sum of its proper divisors (1).

83008531 is an equidigital number, since it uses as much as digits as its factorization.

83008531 is an odious number, because the sum of its binary digits is odd.

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

The square root of 83008531 is about 9110.9017665652. The cubic root of 83008531 is about 436.2220115431. Note that the first 3 decimals are identical.

Adding to 83008531 its reverse (13580038), we get a palindrome (96588569).

It can be divided in two parts, 830085 and 31, that added together give a triangular number (830116 = T1288).

The spelling of 83008531 in words is "eighty-three million, eight thousand, five hundred thirty-one".