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8868146641 = 21142029131
BaseRepresentation
bin10000100001001010…
…10010110111010001
3211220000222112012121
420100211102313101
5121130221143031
64023551054241
7432522000634
oct102045226721
924800875177
108868146641
113840923912
121875b11381
13ab4366063
14601ad1c1b
1536d834011
hex210952dd1

8868146641 has 4 divisors (see below), whose sum is σ = 8910175984. Its totient is φ = 8826117300.

The previous prime is 8868146629. The next prime is 8868146647. The reversal of 8868146641 is 1466418688.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8868146641 - 27 = 8868146513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8868146647) 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, 21014355 + ... + 21014776.

It is an arithmetic number, because the mean of its divisors is an integer number (2227543996).

Almost surely, 28868146641 is an apocalyptic number.

It is an amenable number.

8868146641 is a deficient number, since it is larger than the sum of its proper divisors (42029343).

8868146641 is a wasteful number, since it uses less digits than its factorization.

8868146641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42029342.

The product of its digits is 1769472, while the sum is 52.

The square root of 8868146641 is about 94170.8375294603. The cubic root of 8868146641 is about 2069.8758076984.

The spelling of 8868146641 in words is "eight billion, eight hundred sixty-eight million, one hundred forty-six thousand, six hundred forty-one".

Divisors: 1 211 42029131 8868146641