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84905331 = 374043111
BaseRepresentation
bin1010000111110…
…00110101110011
312220202122012220
411003320311303
5133213432311
612231452123
72050453260
oct503706563
9186678186
1084905331
1143a216a5
1224527043
131478a054
14b3c2267
1576c2206
hex50f8d73

84905331 has 8 divisors (see below), whose sum is σ = 129379584. Its totient is φ = 48517320.

The previous prime is 84905323. The next prime is 84905341. The reversal of 84905331 is 13350948.

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

It is not a de Polignac number, because 84905331 - 23 = 84905323 is a prime.

It is a super-2 number, since 2×849053312 = 14417830464439122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84905292 and 84905301.

It is not an unprimeable number, because it can be changed into a prime (84905341) 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, 2021535 + ... + 2021576.

It is an arithmetic number, because the mean of its divisors is an integer number (16172448).

Almost surely, 284905331 is an apocalyptic number.

84905331 is a deficient number, since it is larger than the sum of its proper divisors (44474253).

84905331 is a wasteful number, since it uses less digits than its factorization.

84905331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043121.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 84905331 is about 9214.4088795755. The cubic root of 84905331 is about 439.5196738453.

The spelling of 84905331 in words is "eighty-four million, nine hundred five thousand, three hundred thirty-one".

Divisors: 1 3 7 21 4043111 12129333 28301777 84905331