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8687009472 = 26323231289
BaseRepresentation
bin10000001011100100…
…10011111011000000
3211102102010210201120
420011302103323000
5120242333300342
63554000432240
7425162235141
oct100562237300
924372123646
108687009472
113758654879
121825318680
13a859846bb
145c5a1dac8
1535c9a3aec
hex205c93ec0

8687009472 has 252 divisors, whose sum is σ = 25106177880. Its totient is φ = 2650306560.

The previous prime is 8687009381. The next prime is 8687009477. The reversal of 8687009472 is 2749007868.

It is not an unprimeable number, because it can be changed into a prime (8687009477) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 97606804 + ... + 97606892.

It is an arithmetic number, because the mean of its divisors is an integer number (99627690).

Almost surely, 28687009472 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 8687009472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12553088940).

8687009472 is an abundant number, since it is smaller than the sum of its proper divisors (16419168408).

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

8687009472 is a wasteful number, since it uses less digits than its factorization.

8687009472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The square root of 8687009472 is about 93204.1279772522. The cubic root of 8687009472 is about 2055.6859376853.

The spelling of 8687009472 in words is "eight billion, six hundred eighty-seven million, nine thousand, four hundred seventy-two".