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80072233 is a prime number
BaseRepresentation
bin1001100010111…
…00111000101001
312120200002110021
410301130320221
5130444302413
611540120441
71661413513
oct461347051
9176602407
1080072233
11412204aa
1222996121
1313787227
14a8c4bb3
15706a18d
hex4c5ce29

80072233 has 2 divisors, whose sum is σ = 80072234. Its totient is φ = 80072232.

The previous prime is 80072189. The next prime is 80072257. The reversal of 80072233 is 33227008.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47775744 + 32296489 = 6912^2 + 5683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80072233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80072198 and 80072207.

It is not a weakly prime, because it can be changed into another prime (80072933) 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, 40036116 + 40036117.

It is an arithmetic number, because the mean of its divisors is an integer number (40036117).

Almost surely, 280072233 is an apocalyptic number.

It is an amenable number.

80072233 is a deficient number, since it is larger than the sum of its proper divisors (1).

80072233 is an equidigital number, since it uses as much as digits as its factorization.

80072233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 80072233 is about 8948.3089463876. The cubic root of 80072233 is about 431.0165833955.

The spelling of 80072233 in words is "eighty million, seventy-two thousand, two hundred thirty-three".