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99033131 is a prime number
BaseRepresentation
bin1011110011100…
…10000000101011
320220100101220202
411321302000223
5200323030011
613454342415
72311524221
oct571620053
9226311822
1099033131
11509a106a
12291baa0b
13176956b2
14d21cb11
158a6323b
hex5e7202b

99033131 has 2 divisors, whose sum is σ = 99033132. Its totient is φ = 99033130.

The previous prime is 99033113. The next prime is 99033167. The reversal of 99033131 is 13133099.

Together with previous prime (99033113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99033131 - 210 = 99032107 is a prime.

It is a super-2 number, since 2×990331312 = 19615122071326322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99033094 and 99033103.

It is not a weakly prime, because it can be changed into another prime (99033031) 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, 49516565 + 49516566.

It is an arithmetic number, because the mean of its divisors is an integer number (49516566).

Almost surely, 299033131 is an apocalyptic number.

99033131 is a deficient number, since it is larger than the sum of its proper divisors (1).

99033131 is an equidigital number, since it uses as much as digits as its factorization.

99033131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187, while the sum is 29.

The square root of 99033131 is about 9951.5391271903. The cubic root of 99033131 is about 462.6580999303.

The spelling of 99033131 in words is "ninety-nine million, thirty-three thousand, one hundred thirty-one".