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8661497353 = 41437962189
BaseRepresentation
bin10000001000100001…
…11111011000001001
3211100122010122200021
420010100333120021
5120214320403403
63551245540441
7424432340605
oct100420773011
924318118607
108661497353
11374520a183
121818874721
13a805c1382
145c249c505
1535a6148bd
hex20443f609

8661497353 has 16 divisors (see below), whose sum is σ = 9194169600. Its totient is φ = 8149115520.

The previous prime is 8661497329. The next prime is 8661497357. The reversal of 8661497353 is 3537941668.

It is a happy number.

8661497353 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8661497353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8661497353.

It is not an unprimeable number, because it can be changed into a prime (8661497357) 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, 108183 + ... + 170371.

It is an arithmetic number, because the mean of its divisors is an integer number (574635600).

Almost surely, 28661497353 is an apocalyptic number.

It is an amenable number.

8661497353 is a deficient number, since it is larger than the sum of its proper divisors (532672247).

8661497353 is a wasteful number, since it uses less digits than its factorization.

8661497353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62352.

The product of its digits is 3265920, while the sum is 52.

The square root of 8661497353 is about 93067.1658158773. The cubic root of 8661497353 is about 2053.6715763314.

The spelling of 8661497353 in words is "eight billion, six hundred sixty-one million, four hundred ninety-seven thousand, three hundred fifty-three".

Divisors: 1 41 43 79 1763 3239 3397 62189 139277 2549749 2674127 4912931 109639207 201430171 211256033 8661497353