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8866009988 = 2211201500227
BaseRepresentation
bin10000100000111010…
…01001001110000100
3211212212221222021022
420100131021032010
5121124144304423
64023433210312
7432464561423
oct102035111604
924785858238
108866009988
11383a6a4590
121875260998
13ab3a98674
146016d72ba
1536d560dc8
hex210749384

8866009988 has 12 divisors (see below), whose sum is σ = 16926019152. Its totient is φ = 4030004520.

The previous prime is 8866009987. The next prime is 8866009991. The reversal of 8866009988 is 8899006688.

It is a happy number.

It is a super-2 number, since 2×88660099882 (a number of 21 digits) contains 22 as substring.

8866009988 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8866009988.

It is not an unprimeable number, because it can be changed into a prime (8866009987) 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, 100750070 + ... + 100750157.

It is an arithmetic number, because the mean of its divisors is an integer number (1410501596).

Almost surely, 28866009988 is an apocalyptic number.

It is an amenable number.

8866009988 is a deficient number, since it is larger than the sum of its proper divisors (8060009164).

8866009988 is a wasteful number, since it uses less digits than its factorization.

8866009988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201500242 (or 201500240 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 62.

The square root of 8866009988 is about 94159.4922883508. The cubic root of 8866009988 is about 2069.7095586963.

The spelling of 8866009988 in words is "eight billion, eight hundred sixty-six million, nine thousand, nine hundred eighty-eight".

Divisors: 1 2 4 11 22 44 201500227 403000454 806000908 2216502497 4433004994 8866009988