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8684244424868 = 2210121495654517
BaseRepresentation
bin111111001011111010101…
…0011011101100010100100
31010202012112220222122200112
41332113311103131202210
52114240313033043433
630245253052432152
71554262446444335
oct176276523354244
933665486878615
108684244424868
112848a70642061
12b83093a78658
134acbc7b17a7c
1422046927a28c
15100d6cc09348
hex7e5f54dd8a4

8684244424868 has 12 divisors (see below), whose sum is σ = 15347897325852. Its totient is φ = 4299130903200.

The previous prime is 8684244424841. The next prime is 8684244424987.

8684244424868 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 7919822951524 + 764421473344 = 2814218^2 + 874312^2 .

It is a super-2 number, since 2×86842444248682 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8684244424798 and 8684244424807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10747826855 + ... + 10747827662.

It is an arithmetic number, because the mean of its divisors is an integer number (1278991443821).

Almost surely, 28684244424868 is an apocalyptic number.

It is an amenable number.

8684244424868 is a deficient number, since it is larger than the sum of its proper divisors (6663652900984).

8684244424868 is a wasteful number, since it uses less digits than its factorization.

8684244424868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21495654622 (or 21495654620 counting only the distinct ones).

The product of its digits is 603979776, while the sum is 68.

The spelling of 8684244424868 in words is "eight trillion, six hundred eighty-four billion, two hundred forty-four million, four hundred twenty-four thousand, eight hundred sixty-eight".

Divisors: 1 2 4 101 202 404 21495654517 42991309034 85982618068 2171061106217 4342122212434 8684244424868