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8144849 is a prime number
BaseRepresentation
bin11111000100011111010001
3120022210122002
4133010133101
54041113344
6450323345
7126141626
oct37043721
916283562
108144849
114663389
122889555
1318c234b
14112034d
15aad44e
hex7c47d1

8144849 has 2 divisors, whose sum is σ = 8144850. Its totient is φ = 8144848.

The previous prime is 8144839. The next prime is 8144861. The reversal of 8144849 is 9484418.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7661824 + 483025 = 2768^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 8144849 - 24 = 8144833 is a prime.

It is not a weakly prime, because it can be changed into another prime (8144839) 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, 4072424 + 4072425.

It is an arithmetic number, because the mean of its divisors is an integer number (4072425).

Almost surely, 28144849 is an apocalyptic number.

It is an amenable number.

8144849 is a deficient number, since it is larger than the sum of its proper divisors (1).

8144849 is an equidigital number, since it uses as much as digits as its factorization.

8144849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 38.

The square root of 8144849 is about 2853.9181838308. The cubic root of 8144849 is about 201.1998622578.

The spelling of 8144849 in words is "eight million, one hundred forty-four thousand, eight hundred forty-nine".