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8985163863 = 313230388817
BaseRepresentation
bin10000101111000111…
…01011100001010111
3212012012011121122210
420113203223201113
5121400200220423
64043331124503
7435442430004
oct102743534127
925165147583
108985163863
1138a0988665
1218a9143733
13b02687410
146134728ab
15378c4ab93
hex2178eb857

8985163863 has 8 divisors (see below), whose sum is σ = 12901773808. Its totient is φ = 5529331584.

The previous prime is 8985163861. The next prime is 8985163933. The reversal of 8985163863 is 3683615898.

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

It is not a de Polignac number, because 8985163863 - 21 = 8985163861 is a prime.

It is a super-2 number, since 2×89851638632 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8985163861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115194370 + ... + 115194447.

It is an arithmetic number, because the mean of its divisors is an integer number (1612721726).

Almost surely, 28985163863 is an apocalyptic number.

8985163863 is a deficient number, since it is larger than the sum of its proper divisors (3916609945).

8985163863 is a wasteful number, since it uses less digits than its factorization.

8985163863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230388833.

The product of its digits is 7464960, while the sum is 57.

The square root of 8985163863 is about 94790.1042461712. The cubic root of 8985163863 is about 2078.9402163298.

The spelling of 8985163863 in words is "eight billion, nine hundred eighty-five million, one hundred sixty-three thousand, eight hundred sixty-three".

Divisors: 1 3 13 39 230388817 691166451 2995054621 8985163863