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84213807 = 3177715797
BaseRepresentation
bin1010000010100…
…00000000101111
312212110111121220
411001100000233
5133024320212
612204554423
72041543206
oct501200057
9185414556
1084213807
114359a097
1224252a13
13145a7372
14b28223d
1575d738c
hex505002f

84213807 has 8 divisors (see below), whose sum is σ = 112355376. Its totient is φ = 56107392.

The previous prime is 84213803. The next prime is 84213821. The reversal of 84213807 is 70831248.

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

It is not a de Polignac number, because 84213807 - 22 = 84213803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84213803) 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, 2568 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (14044422).

Almost surely, 284213807 is an apocalyptic number.

84213807 is a deficient number, since it is larger than the sum of its proper divisors (28141569).

84213807 is a wasteful number, since it uses less digits than its factorization.

84213807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17577.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 84213807 is about 9176.8081052183. The cubic root of 84213807 is about 438.3231753041.

The spelling of 84213807 in words is "eighty-four million, two hundred thirteen thousand, eight hundred seven".

Divisors: 1 3 1777 5331 15797 47391 28071269 84213807