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2428906849 is a prime number
BaseRepresentation
bin1001000011000110…
…0010110101100001
320021021102020210221
42100301202311201
514433300004344
61041003523041
7114122240035
oct22061426541
96237366727
102428906849
111037066736
12579529481
132c929a1b5
141908261c5
15e3386184
hex90c62d61

2428906849 has 2 divisors, whose sum is σ = 2428906850. Its totient is φ = 2428906848.

The previous prime is 2428906793. The next prime is 2428906853. The reversal of 2428906849 is 9486098242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2109748624 + 319158225 = 45932^2 + 17865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2428906849 is a prime.

It is a super-2 number, since 2×24289068492 = 11799176962238217602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2428906796 and 2428906805.

It is not a weakly prime, because it can be changed into another prime (2428906859) 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, 1214453424 + 1214453425.

It is an arithmetic number, because the mean of its divisors is an integer number (1214453425).

Almost surely, 22428906849 is an apocalyptic number.

It is an amenable number.

2428906849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2428906849 is an equidigital number, since it uses as much as digits as its factorization.

2428906849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 2428906849 is about 49283.9410863214. The cubic root of 2428906849 is about 1344.2197948784.

The spelling of 2428906849 in words is "two billion, four hundred twenty-eight million, nine hundred six thousand, eight hundred forty-nine".