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999988133 is a prime number
BaseRepresentation
bin111011100110101…
…001101110100101
32120200122122211112
4323212221232211
54021444110013
6243121114405
733531521204
oct7346515645
92520578745
10999988133
11473515981
1223aa88a05
1312c234971
1496b4723b
155cbccba8
hex3b9a9ba5

999988133 has 2 divisors, whose sum is σ = 999988134. Its totient is φ = 999988132.

The previous prime is 999988117. The next prime is 999988163. The reversal of 999988133 is 331889999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999950884 + 37249 = 31622^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 999988133 - 24 = 999988117 is a prime.

It is a super-2 number, since 2×9999881332 = 1999952532281651378, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999988163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499994066 + 499994067.

It is an arithmetic number, because the mean of its divisors is an integer number (499994067).

Almost surely, 2999988133 is an apocalyptic number.

It is an amenable number.

999988133 is a deficient number, since it is larger than the sum of its proper divisors (1).

999988133 is an equidigital number, since it uses as much as digits as its factorization.

999988133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 59.

The square root of 999988133 is about 31622.5889673822. The cubic root of 999988133 is about 999.9960443177.

The spelling of 999988133 in words is "nine hundred ninety-nine million, nine hundred eighty-eight thousand, one hundred thirty-three".