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69485049 = 327720561
BaseRepresentation
bin1000010010001…
…00000111111001
311211202012120100
410021010013321
5120242010144
610521150013
71502420214
oct411040771
9154665510
1069485049
113624a167
121b32b309
131151b31a
14932a77b
156178269
hex42441f9

69485049 has 6 divisors (see below), whose sum is σ = 100367306. Its totient is φ = 46323360.

The previous prime is 69485023. The next prime is 69485057. The reversal of 69485049 is 94058496.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59675625 + 9809424 = 7725^2 + 3132^2 .

It is not a de Polignac number, because 69485049 - 215 = 69452281 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69484995 and 69485013.

It is not an unprimeable number, because it can be changed into a prime (69485099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3860272 + ... + 3860289.

Almost surely, 269485049 is an apocalyptic number.

It is an amenable number.

69485049 is a deficient number, since it is larger than the sum of its proper divisors (30882257).

69485049 is a wasteful number, since it uses less digits than its factorization.

69485049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7720567 (or 7720564 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 69485049 is about 8335.7692506451. The cubic root of 69485049 is about 411.1154416691.

The spelling of 69485049 in words is "sixty-nine million, four hundred eighty-five thousand, forty-nine".

Divisors: 1 3 9 7720561 23161683 69485049