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8684881764 = 2231355672319
BaseRepresentation
bin10000001011010100…
…01100011101100100
3211102021010201001120
420011222030131210
5120241312204024
63553443053540
7425135163666
oct100552143544
924367121046
108684881764
113757431239
1218246712b0
13a853bb0c0
145c5628536
1535c6d3479
hex205a8c764

8684881764 has 24 divisors (see below), whose sum is σ = 21823549440. Its totient is φ = 2672271264.

The previous prime is 8684881763. The next prime is 8684881789. The reversal of 8684881764 is 4671884868.

It is a junction number, because it is equal to n+sod(n) for n = 8684881698 and 8684881707.

It is not an unprimeable number, because it can be changed into a prime (8684881763) 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, 27836004 + ... + 27836315.

It is an arithmetic number, because the mean of its divisors is an integer number (909314560).

Almost surely, 28684881764 is an apocalyptic number.

It is an amenable number.

8684881764 is an abundant number, since it is smaller than the sum of its proper divisors (13138667676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8684881764 is a wasteful number, since it uses less digits than its factorization.

8684881764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55672339 (or 55672337 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 60.

The square root of 8684881764 is about 93192.7130413103. The cubic root of 8684881764 is about 2055.5180910257.

The spelling of 8684881764 in words is "eight billion, six hundred eighty-four million, eight hundred eighty-one thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 55672319 111344638 167016957 222689276 334033914 668067828 723740147 1447480294 2171220441 2894960588 4342440882 8684881764