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99857873 is a prime number
BaseRepresentation
bin1011111001110…
…11010111010001
320221220022020202
411330323113101
5201030422443
613524144545
72321530553
oct574732721
9227808222
1099857873
1151404775
1229538155
13178c3bcb
14d3954d3
158b777b8
hex5f3b5d1

99857873 has 2 divisors, whose sum is σ = 99857874. Its totient is φ = 99857872.

The previous prime is 99857869. The next prime is 99857887. The reversal of 99857873 is 37875899.

99857873 is nontrivially palindromic in base 15.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99062209 + 795664 = 9953^2 + 892^2 .

It is a cyclic number.

It is not a de Polignac number, because 99857873 - 22 = 99857869 is a prime.

It is not a weakly prime, because it can be changed into another prime (99857833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49928936 + 49928937.

It is an arithmetic number, because the mean of its divisors is an integer number (49928937).

Almost surely, 299857873 is an apocalyptic number.

It is an amenable number.

99857873 is a deficient number, since it is larger than the sum of its proper divisors (1).

99857873 is an equidigital number, since it uses as much as digits as its factorization.

99857873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 56.

The square root of 99857873 is about 9992.8911231935. The cubic root of 99857873 is about 463.9388807352.

The spelling of 99857873 in words is "ninety-nine million, eight hundred fifty-seven thousand, eight hundred seventy-three".