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84052751 = 194423829
BaseRepresentation
bin1010000001010…
…00101100001111
312212011022200212
411000220230033
5133004142001
612201313035
72040302516
oct500505417
9185138625
1084052751
114349a092
122419577b
131454bc73
14b23d67d
1575a47bb
hex5028b0f

84052751 has 4 divisors (see below), whose sum is σ = 88476600. Its totient is φ = 79628904.

The previous prime is 84052739. The next prime is 84052763. The reversal of 84052751 is 15725048.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (84052739) and next prime (84052763).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-84052751 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 (84052781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2211896 + ... + 2211933.

It is an arithmetic number, because the mean of its divisors is an integer number (22119150).

Almost surely, 284052751 is an apocalyptic number.

84052751 is a deficient number, since it is larger than the sum of its proper divisors (4423849).

84052751 is a wasteful number, since it uses less digits than its factorization.

84052751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423848.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 84052751 is about 9168.0287412289. The cubic root of 84052751 is about 438.0435710011.

Adding to 84052751 its reverse (15725048), we get a palindrome (99777799).

The spelling of 84052751 in words is "eighty-four million, fifty-two thousand, seven hundred fifty-one".

Divisors: 1 19 4423829 84052751