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84366349 = 229336793
BaseRepresentation
bin1010000011101…
…01010000001101
312212202020212121
411001311100031
5133044210344
612212132541
72043050014
oct501652015
9185666777
1084366349
1143693761
1224307151
131462b922
14b2c1a7b
157617684
hex507540d

84366349 has 4 divisors (see below), whose sum is σ = 84405436. Its totient is φ = 84327264.

The previous prime is 84366343. The next prime is 84366353. The reversal of 84366349 is 94366348.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13638249 + 70728100 = 3693^2 + 8410^2 .

It is a cyclic number.

It is not a de Polignac number, because 84366349 - 23 = 84366341 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 (84366341) 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, 16104 + ... + 20689.

It is an arithmetic number, because the mean of its divisors is an integer number (21101359).

Almost surely, 284366349 is an apocalyptic number.

It is an amenable number.

84366349 is a deficient number, since it is larger than the sum of its proper divisors (39087).

84366349 is a wasteful number, since it uses less digits than its factorization.

84366349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39086.

The product of its digits is 373248, while the sum is 43.

The square root of 84366349 is about 9185.1156225711. The cubic root of 84366349 is about 438.5876701885.

Subtracting 84366349 from its reverse (94366348), we obtain a palindrome (9999999).

The spelling of 84366349 in words is "eighty-four million, three hundred sixty-six thousand, three hundred forty-nine".

Divisors: 1 2293 36793 84366349