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84813469 = 136524113
BaseRepresentation
bin1010000111000…
…10011010011101
312220120222012121
411003202122131
5133203012334
612225502541
72046621406
oct503423235
9186528177
1084813469
1143969684
12244a1a51
13147572b0
14b39a9ad
1576a4db4
hex50e269d

84813469 has 4 divisors (see below), whose sum is σ = 91337596. Its totient is φ = 78289344.

The previous prime is 84813457. The next prime is 84813481. The reversal of 84813469 is 96431848.

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 (84813457) and next prime (84813481).

It can be written as a sum of positive squares in 2 ways, for example, as 46744569 + 38068900 = 6837^2 + 6170^2 .

It is a cyclic number.

It is not a de Polignac number, because 84813469 - 217 = 84682397 is a prime.

It is a super-2 number, since 2×848134692 = 14386649047627922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84813439) 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, 3262044 + ... + 3262069.

It is an arithmetic number, because the mean of its divisors is an integer number (22834399).

Almost surely, 284813469 is an apocalyptic number.

It is an amenable number.

84813469 is a deficient number, since it is larger than the sum of its proper divisors (6524127).

84813469 is a wasteful number, since it uses less digits than its factorization.

84813469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524126.

The product of its digits is 165888, while the sum is 43.

The square root of 84813469 is about 9209.4228375072. The cubic root of 84813469 is about 439.3611061573.

The spelling of 84813469 in words is "eighty-four million, eight hundred thirteen thousand, four hundred sixty-nine".

Divisors: 1 13 6524113 84813469