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69553013 = 537317977
BaseRepresentation
bin1000010010101…
…00101101110101
311211212122210112
410021110231311
5120301144023
610522432405
71503122315
oct411245565
9154778715
1069553013
1136296232
121b362705
131154323a
149347445
15618d478
hex4254b75

69553013 has 8 divisors (see below), whose sum is σ = 71840088. Its totient is φ = 67302144.

The previous prime is 69552971. The next prime is 69553021. The reversal of 69553013 is 31035596.

It can be written as a sum of positive squares in 4 ways, for example, as 18601969 + 50951044 = 4313^2 + 7138^2 .

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 69553013 - 28 = 69552757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69553073) 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 in 7 ways as a sum of consecutive naturals, for example, 5120 + ... + 12857.

It is an arithmetic number, because the mean of its divisors is an integer number (8980011).

Almost surely, 269553013 is an apocalyptic number.

It is an amenable number.

69553013 is a deficient number, since it is larger than the sum of its proper divisors (2287075).

69553013 is a wasteful number, since it uses less digits than its factorization.

69553013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 69553013 is about 8339.8449026346. The cubic root of 69553013 is about 411.2494366575.

The spelling of 69553013 in words is "sixty-nine million, five hundred fifty-three thousand, thirteen".

Divisors: 1 53 73 3869 17977 952781 1312321 69553013