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84260013 = 328086671
BaseRepresentation
bin1010000010110…
…11010010101101
312212112212000020
411001123102231
5133032310023
612205552353
72042125005
oct501332255
9185485006
1084260013
1143620882
12242756b9
13145c23c6
14b295005
1575e5de3
hex505b4ad

84260013 has 4 divisors (see below), whose sum is σ = 112346688. Its totient is φ = 56173340.

The previous prime is 84259999. The next prime is 84260021. The reversal of 84260013 is 31006248.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84260013 - 28 = 84259757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84260053) 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 3 ways as a sum of consecutive naturals, for example, 14043333 + ... + 14043338.

It is an arithmetic number, because the mean of its divisors is an integer number (28086672).

Almost surely, 284260013 is an apocalyptic number.

It is an amenable number.

84260013 is a deficient number, since it is larger than the sum of its proper divisors (28086675).

84260013 is a wasteful number, since it uses less digits than its factorization.

84260013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28086674.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 84260013 is about 9179.3253020034. The cubic root of 84260013 is about 438.4033262847.

The spelling of 84260013 in words is "eighty-four million, two hundred sixty thousand, thirteen".

Divisors: 1 3 28086671 84260013