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84065701 = 233421857
BaseRepresentation
bin1010000001010…
…11110110100101
312212011222110111
411000223312211
5133010100301
612201453021
72040355336
oct500536645
9185158414
1084065701
11434a8895
12241a1171
1314554b25
14b24428d
1575a8551
hex502bda5

84065701 has 8 divisors (see below), whose sum is σ = 84725784. Its totient is φ = 83408640.

The previous prime is 84065699. The next prime is 84065711. The reversal of 84065701 is 10756048.

It can be written as a sum of positive squares in 4 ways, for example, as 1437601 + 82628100 = 1199^2 + 9090^2 .

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 84065701 - 21 = 84065699 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 (84065711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97665 + ... + 98521.

It is an arithmetic number, because the mean of its divisors is an integer number (10590723).

Almost surely, 284065701 is an apocalyptic number.

It is an amenable number.

84065701 is a deficient number, since it is larger than the sum of its proper divisors (660083).

84065701 is a wasteful number, since it uses less digits than its factorization.

84065701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 84065701 is about 9168.7349727212. The cubic root of 84065701 is about 438.0660662907.

The spelling of 84065701 in words is "eighty-four million, sixty-five thousand, seven hundred one".

Divisors: 1 233 421 857 98093 199681 360797 84065701