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2987665829 is a prime number
BaseRepresentation
bin1011001000010100…
…0010100110100101
321201012211011000222
42302011002212211
522104320301304
61212244014125
7134015512001
oct26205024645
97635734028
102987665829
1112a3506615
126b4691345
13387c86405
14204b15701
151274594be
hexb21429a5

2987665829 has 2 divisors, whose sum is σ = 2987665830. Its totient is φ = 2987665828.

The previous prime is 2987665781. The next prime is 2987665853. The reversal of 2987665829 is 9285667892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1632321604 + 1355344225 = 40402^2 + 36815^2 .

It is a cyclic number.

It is not a de Polignac number, because 2987665829 - 220 = 2986617253 is a prime.

It is a super-2 number, since 2×29876658292 = 17852294211548514482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2987665129) 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, 1493832914 + 1493832915.

It is an arithmetic number, because the mean of its divisors is an integer number (1493832915).

Almost surely, 22987665829 is an apocalyptic number.

It is an amenable number.

2987665829 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987665829 is an equidigital number, since it uses as much as digits as its factorization.

2987665829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 62.

The square root of 2987665829 is about 54659.5447200212. The cubic root of 2987665829 is about 1440.2703049994.

The spelling of 2987665829 in words is "two billion, nine hundred eighty-seven million, six hundred sixty-five thousand, eight hundred twenty-nine".