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85044049 is a prime number
BaseRepresentation
bin1010001000110…
…10101101010001
312221000200111121
411010122231101
5133232402144
612234442241
72051601556
oct504325521
9187020447
1085044049
1144006942
1224593381
131480822c
14b41aa2d
1576ed384
hex511ab51

85044049 has 2 divisors, whose sum is σ = 85044050. Its totient is φ = 85044048.

The previous prime is 85044031. The next prime is 85044061. The reversal of 85044049 is 94044058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73017025 + 12027024 = 8545^2 + 3468^2 .

It is a cyclic number.

It is not a de Polignac number, because 85044049 - 219 = 84519761 is a prime.

It is not a weakly prime, because it can be changed into another prime (85044079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42522024 + 42522025.

It is an arithmetic number, because the mean of its divisors is an integer number (42522025).

Almost surely, 285044049 is an apocalyptic number.

It is an amenable number.

85044049 is a deficient number, since it is larger than the sum of its proper divisors (1).

85044049 is an equidigital number, since it uses as much as digits as its factorization.

85044049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 85044049 is about 9221.9330403121. The cubic root of 85044049 is about 439.7589054527.

Subtracting 85044049 from its reverse (94044058), we obtain a palindrome (9000009).

The spelling of 85044049 in words is "eighty-five million, forty-four thousand, forty-nine".