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99999539 is a prime number
BaseRepresentation
bin1011111010111…
…01111100110011
320222011111120122
411331131330303
5201044441124
613531200455
72322660563
oct575357463
9228144518
1099999539
11514a1152
12295a612b
1317943533
14d3d0da3
158ba475e
hex5f5df33

99999539 has 2 divisors, whose sum is σ = 99999540. Its totient is φ = 99999538.

The previous prime is 99999517. The next prime is 99999541. The reversal of 99999539 is 93599999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99999539 - 224 = 83222323 is a prime.

Together with 99999541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99999509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999769 + 49999770.

It is an arithmetic number, because the mean of its divisors is an integer number (49999770).

Almost surely, 299999539 is an apocalyptic number.

99999539 is a deficient number, since it is larger than the sum of its proper divisors (1).

99999539 is an equidigital number, since it uses as much as digits as its factorization.

99999539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7971615, while the sum is 62.

The square root of 99999539 is about 9999.9769499734. The cubic root of 99999539 is about 464.1581701027.

The spelling of 99999539 in words is "ninety-nine million, nine hundred ninety-nine thousand, five hundred thirty-nine".