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6489202087 = 89499146117
BaseRepresentation
bin1100000101100100…
…10101110110100111
3121202020120121210001
412002302111312213
5101242213431322
62551530042131
7316544210344
oct60262256647
917666517701
106489202087
11282aa92635
121311279347
137c5540064
14457b937cb
1527ea6b827
hex182c95da7

6489202087 has 8 divisors (see below), whose sum is σ = 6575310000. Its totient is φ = 6403387584.

The previous prime is 6489202079. The next prime is 6489202133. The reversal of 6489202087 is 7802029846.

6489202087 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6489202087 - 23 = 6489202079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489209087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28648 + ... + 117469.

It is an arithmetic number, because the mean of its divisors is an integer number (821913750).

Almost surely, 26489202087 is an apocalyptic number.

6489202087 is a deficient number, since it is larger than the sum of its proper divisors (86107913).

6489202087 is a wasteful number, since it uses less digits than its factorization.

6489202087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146705.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 6489202087 is about 80555.5838350142. The cubic root of 6489202087 is about 1865.2215868985.

The spelling of 6489202087 in words is "six billion, four hundred eighty-nine million, two hundred two thousand, eighty-seven".

Divisors: 1 89 499 44411 146117 13004413 72912383 6489202087