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84168349 = 611379809
BaseRepresentation
bin1010000010001…
…00111010011101
312212101012021021
411001010322131
5133021341344
612204004141
72041263526
oct501047235
9185335237
1084168349
1143568a21
1224230651
131458c775
14b26d84d
1575c8b84
hex5044e9d

84168349 has 4 divisors (see below), whose sum is σ = 85548220. Its totient is φ = 82788480.

The previous prime is 84168341. The next prime is 84168373. The reversal of 84168349 is 94386148.

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 20088324 + 64080025 = 4482^2 + 8005^2 .

It is a cyclic number.

It is not a de Polignac number, because 84168349 - 23 = 84168341 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 (84168341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 689844 + ... + 689965.

It is an arithmetic number, because the mean of its divisors is an integer number (21387055).

Almost surely, 284168349 is an apocalyptic number.

It is an amenable number.

84168349 is a deficient number, since it is larger than the sum of its proper divisors (1379871).

84168349 is a wasteful number, since it uses less digits than its factorization.

84168349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379870.

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

The square root of 84168349 is about 9174.3309837830. The cubic root of 84168349 is about 438.2442932226.

The spelling of 84168349 in words is "eighty-four million, one hundred sixty-eight thousand, three hundred forty-nine".

Divisors: 1 61 1379809 84168349