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8768841820 = 225438442091
BaseRepresentation
bin10000010101010100…
…11110100001011100
3211122010010022121021
420022222132201130
5120424310414240
64010042413524
7430204632334
oct101252364134
924563108537
108768841820
11379a867712
1218488012a4
13a99906acb
145d28420c4
15364c6a54a
hex20aa9e85c

8768841820 has 12 divisors (see below), whose sum is σ = 18414567864. Its totient is φ = 3507536720.

The previous prime is 8768841811. The next prime is 8768841821. The reversal of 8768841820 is 281488678.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8768841821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219221026 + ... + 219221065.

It is an arithmetic number, because the mean of its divisors is an integer number (1534547322).

Almost surely, 28768841820 is an apocalyptic number.

It is an amenable number.

8768841820 is an abundant number, since it is smaller than the sum of its proper divisors (9645726044).

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

8768841820 is a wasteful number, since it uses less digits than its factorization.

8768841820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438442100 (or 438442098 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 52.

The square root of 8768841820 is about 93642.0942738895. The cubic root of 8768841820 is about 2062.1206850408.

The spelling of 8768841820 in words is "eight billion, seven hundred sixty-eight million, eight hundred forty-one thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 438442091 876884182 1753768364 2192210455 4384420910 8768841820