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8680243572 = 223272111322647
BaseRepresentation
bin10000001010110001…
…00000000101110100
3211101221102001122200
420011120200011310
5120234120243242
63553155424500
7425050565400
oct100530400564
924357361580
108680243572
113754853520
121822bb5130
13a84455c00
145c4b7c100
1535c0b904c
hex205620174

8680243572 has 324 divisors, whose sum is σ = 30162446496. Its totient is φ = 2080391040.

The previous prime is 8680243553. The next prime is 8680243573. The reversal of 8680243572 is 2753420868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8680243573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 3277953 + ... + 3280599.

Almost surely, 28680243572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8680243572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15081223248).

8680243572 is an abundant number, since it is smaller than the sum of its proper divisors (21482202924).

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

8680243572 is a wasteful number, since it uses less digits than its factorization.

8680243572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708 (or 2683 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 8680243572 is about 93167.8247679960. The cubic root of 8680243572 is about 2055.1521069502.

It can be divided in two parts, 8680 and 243572, that added together give a palindrome (252252).

The spelling of 8680243572 in words is "eight billion, six hundred eighty million, two hundred forty-three thousand, five hundred seventy-two".