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4982992181 is a prime number
BaseRepresentation
bin1001010010000001…
…00110110100110101
3110212021101020012222
410221000212310311
540201121222211
62142242452125
7234324506666
oct45100466465
913767336188
104982992181
112127850862
12b70964045
136154853ab
14353b1536d
151e26e71db
hex129026d35

4982992181 has 2 divisors, whose sum is σ = 4982992182. Its totient is φ = 4982992180.

The previous prime is 4982992151. The next prime is 4982992237. The reversal of 4982992181 is 1812992894.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4982242225 + 749956 = 70585^2 + 866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4982992181 is a prime.

It is a super-2 number, since 2×49829921812 = 49660422151814273522, 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 (4982992151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2491496090 + 2491496091.

It is an arithmetic number, because the mean of its divisors is an integer number (2491496091).

Almost surely, 24982992181 is an apocalyptic number.

It is an amenable number.

4982992181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4982992181 is an equidigital number, since it uses as much as digits as its factorization.

4982992181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 53.

The square root of 4982992181 is about 70590.3122319203. The cubic root of 4982992181 is about 1708.0348800298.

The spelling of 4982992181 in words is "four billion, nine hundred eighty-two million, nine hundred ninety-two thousand, one hundred eighty-one".