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84130543 = 783891627
BaseRepresentation
bin1010000001110…
…11101011101111
312212022021102001
411000323223233
5133014134133
612203113131
72041045360
oct500735357
9185267361
1084130543
1143542582
12242127a7
13145784b3
14b25db67
1575bc87d
hex503baef

84130543 has 16 divisors (see below), whose sum is σ = 98461440. Its totient is φ = 70399296.

The previous prime is 84130511. The next prime is 84130547. The reversal of 84130543 is 34503148.

It is a cyclic number.

It is not a de Polignac number, because 84130543 - 25 = 84130511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84130547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50896 + ... + 52522.

It is an arithmetic number, because the mean of its divisors is an integer number (6153840).

Almost surely, 284130543 is an apocalyptic number.

84130543 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

84130543 is a deficient number, since it is larger than the sum of its proper divisors (14330897).

84130543 is a wasteful number, since it uses less digits than its factorization.

84130543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 84130543 is about 9172.2703296403. The cubic root of 84130543 is about 438.1786678213.

The spelling of 84130543 in words is "eighty-four million, one hundred thirty thousand, five hundred forty-three".

Divisors: 1 7 83 89 581 623 1627 7387 11389 51709 135041 144803 945287 1013621 12018649 84130543