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69319049 = 195776323
BaseRepresentation
bin1000010000110…
…11100110001001
311211102202212012
410020123212021
5120221202144
610513425305
71501126232
oct410334611
9154382765
1069319049
1136146478
121b26b235
13114908b7
1492c6089
156143e9e
hex421b989

69319049 has 8 divisors (see below), whose sum is σ = 73105440. Its totient is φ = 65546496.

The previous prime is 69319039. The next prime is 69319067. The reversal of 69319049 is 94091396.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69319049 - 224 = 52541833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69318997 and 69319015.

It is not an unprimeable number, because it can be changed into a prime (69319009) 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 7 ways as a sum of consecutive naturals, for example, 7802 + ... + 14124.

It is an arithmetic number, because the mean of its divisors is an integer number (9138180).

Almost surely, 269319049 is an apocalyptic number.

It is an amenable number.

69319049 is a deficient number, since it is larger than the sum of its proper divisors (3786391).

69319049 is a wasteful number, since it uses less digits than its factorization.

69319049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6919.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 69319049 is about 8325.8062072090. The cubic root of 69319049 is about 410.7877952544.

The spelling of 69319049 in words is "sixty-nine million, three hundred nineteen thousand, forty-nine".

Divisors: 1 19 577 6323 10963 120137 3648371 69319049