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4987008491 is a prime number
BaseRepresentation
bin1001010010011111…
…11011010111101011
3110212112221021120012
410221033323113223
540203133232431
62142504522135
7234403605233
oct45117732753
913775837505
104987008491
11212a044323
12b7218034b
136162604ca
1435447ccc3
151e2c3c22b
hex1293fb5eb

4987008491 has 2 divisors, whose sum is σ = 4987008492. Its totient is φ = 4987008490.

The previous prime is 4987008379. The next prime is 4987008503. The reversal of 4987008491 is 1948007894.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4987008491 is a prime.

It is not a weakly prime, because it can be changed into another prime (4987028491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493504245 + 2493504246.

It is an arithmetic number, because the mean of its divisors is an integer number (2493504246).

Almost surely, 24987008491 is an apocalyptic number.

4987008491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4987008491 is an equidigital number, since it uses as much as digits as its factorization.

4987008491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 50.

The square root of 4987008491 is about 70618.7545273917. The cubic root of 4987008491 is about 1708.4936509238.

The spelling of 4987008491 in words is "four billion, nine hundred eighty-seven million, eight thousand, four hundred ninety-one".