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84668911 = 2310933773
BaseRepresentation
bin1010000101111…
…11000111101111
312220022121220121
411002333013233
5133133401121
612222425411
72045450065
oct502770757
9186277817
1084668911
1143880008
1224432267
1314706562
14b360035
157677141
hex50bf1ef

84668911 has 8 divisors (see below), whose sum is σ = 89163360. Its totient is φ = 80242272.

The previous prime is 84668897. The next prime is 84668923. The reversal of 84668911 is 11986648.

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 84668911 - 27 = 84668783 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 (84668971) 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, 14380 + ... + 19393.

It is an arithmetic number, because the mean of its divisors is an integer number (11145420).

Almost surely, 284668911 is an apocalyptic number.

84668911 is a deficient number, since it is larger than the sum of its proper divisors (4494449).

84668911 is a wasteful number, since it uses less digits than its factorization.

84668911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33905.

The product of its digits is 82944, while the sum is 43.

The square root of 84668911 is about 9201.5711158476. The cubic root of 84668911 is about 439.1113451929. Note that the first 3 decimals are identical.

The spelling of 84668911 in words is "eighty-four million, six hundred sixty-eight thousand, nine hundred eleven".

Divisors: 1 23 109 2507 33773 776779 3681257 84668911