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8668828685 = 5112331221059
BaseRepresentation
bin10000001001011001…
…11101010000001101
3211101010221010101002
420010230331100031
5120223210004220
63552111030045
7424551554006
oct100454752015
924333833332
108668828685
113749367330
12181b20b325
13a81c8a33a
145c344a1ad
1535b0b1c75
hex204b3d40d

8668828685 has 32 divisors (see below), whose sum is σ = 12223733760. Its totient is φ = 5835931200.

The previous prime is 8668828673. The next prime is 8668828699. The reversal of 8668828685 is 5868288668.

It is not a de Polignac number, because 8668828685 - 24 = 8668828669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71315 + ... + 149744.

It is an arithmetic number, because the mean of its divisors is an integer number (381991680).

Almost surely, 28668828685 is an apocalyptic number.

It is an amenable number.

8668828685 is a deficient number, since it is larger than the sum of its proper divisors (3554905075).

8668828685 is a wasteful number, since it uses less digits than its factorization.

8668828685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221129.

The product of its digits is 70778880, while the sum is 65.

The square root of 8668828685 is about 93106.5448021781. The cubic root of 8668828685 is about 2054.2508411531.

The spelling of 8668828685 in words is "eight billion, six hundred sixty-eight million, eight hundred twenty-eight thousand, six hundred eighty-five".

Divisors: 1 5 11 23 31 55 115 155 253 341 713 1265 1705 3565 7843 39215 221059 1105295 2431649 5084357 6852829 12158245 25421785 34264145 55927927 75381119 157615067 279639635 376905595 788075335 1733765737 8668828685