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8816029985 = 57251886571
BaseRepresentation
bin10000011010111100…
…11111000100100001
3211202101220201121002
420031132133010201
5121023400424420
64014450041345
7431320006220
oct101536370441
924671821532
108816029985
1138144678a4
121860579255
13aa66193b9
145d8c06cb7
15368e8c075
hex20d79f121

8816029985 has 8 divisors (see below), whose sum is σ = 12090555456. Its totient is φ = 6045277680.

The previous prime is 8816029939. The next prime is 8816030021. The reversal of 8816029985 is 5899206188.

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

It is not a de Polignac number, because 8816029985 - 216 = 8815964449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8816029985.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125943251 + ... + 125943320.

It is an arithmetic number, because the mean of its divisors is an integer number (1511319432).

Almost surely, 28816029985 is an apocalyptic number.

It is an amenable number.

8816029985 is a deficient number, since it is larger than the sum of its proper divisors (3274525471).

8816029985 is a wasteful number, since it uses less digits than its factorization.

8816029985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251886583.

The product of its (nonzero) digits is 2488320, while the sum is 56.

The square root of 8816029985 is about 93893.7164298016. The cubic root of 8816029985 is about 2065.8130640475.

The spelling of 8816029985 in words is "eight billion, eight hundred sixteen million, twenty-nine thousand, nine hundred eighty-five".

Divisors: 1 5 7 35 251886571 1259432855 1763205997 8816029985