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84385213 = 1119403757
BaseRepresentation
bin1010000011110…
…01110110111101
312212210012202021
411001321312331
5133100311323
612212400141
72043156013
oct501716675
9185705667
1084385213
11436a6950
1224316051
13146373a3
14b2c88b3
15761d05d
hex5079dbd

84385213 has 8 divisors (see below), whose sum is σ = 96901920. Its totient is φ = 72676080.

The previous prime is 84385211. The next prime is 84385219. The reversal of 84385213 is 31258348.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84385213 - 21 = 84385211 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 (84385211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201670 + ... + 202087.

It is an arithmetic number, because the mean of its divisors is an integer number (12112740).

Almost surely, 284385213 is an apocalyptic number.

It is an amenable number.

84385213 is a deficient number, since it is larger than the sum of its proper divisors (12516707).

84385213 is a wasteful number, since it uses less digits than its factorization.

84385213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403787.

The product of its digits is 23040, while the sum is 34.

The square root of 84385213 is about 9186.1424439206. The cubic root of 84385213 is about 438.6203566065.

The spelling of 84385213 in words is "eighty-four million, three hundred eighty-five thousand, two hundred thirteen".

Divisors: 1 11 19 209 403757 4441327 7671383 84385213