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613384845 = 3556971867
BaseRepresentation
bin100100100011111…
…000001010001101
31120202012011211020
4210203320022031
52224011303340
6140510544353
721125454003
oct4443701215
91522164736
10613384845
11295270127
121515080b9
139a104018
145b66ca73
1538cb39d0
hex248f828d

613384845 has 16 divisors (see below), whose sum is σ = 983154240. Its totient is φ = 326559104.

The previous prime is 613384843. The next prime is 613384867. The reversal of 613384845 is 548483316.

It is a cyclic number.

It is not a de Polignac number, because 613384845 - 21 = 613384843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 613384797 and 613384806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613384843) 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 15 ways as a sum of consecutive naturals, for example, 27399 + ... + 44468.

It is an arithmetic number, because the mean of its divisors is an integer number (61447140).

Almost surely, 2613384845 is an apocalyptic number.

It is an amenable number.

613384845 is a deficient number, since it is larger than the sum of its proper divisors (369769395).

613384845 is a wasteful number, since it uses less digits than its factorization.

613384845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72444.

The product of its digits is 276480, while the sum is 42.

The square root of 613384845 is about 24766.6074584308. The cubic root of 613384845 is about 849.6583840605.

The spelling of 613384845 in words is "six hundred thirteen million, three hundred eighty-four thousand, eight hundred forty-five".

Divisors: 1 3 5 15 569 1707 2845 8535 71867 215601 359335 1078005 40892323 122676969 204461615 613384845