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84219 = 367419
BaseRepresentation
bin10100100011111011
311021112020
4110203323
510143334
61445523
7500352
oct244373
9137466
1084219
1158303
12408a3
132c445
1422999
1519e49
hex148fb

84219 has 8 divisors (see below), whose sum is σ = 114240. Its totient is φ = 55176.

The previous prime is 84211. The next prime is 84221. The reversal of 84219 is 91248.

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

It is not a de Polignac number, because 84219 - 23 = 84211 is a prime.

It is a super-2 number, since 2×842192 = 14185679922, which contains 22 as substring.

It is an Ulam number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (84211) 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, 9 + ... + 410.

It is an arithmetic number, because the mean of its divisors is an integer number (14280).

284219 is an apocalyptic number.

84219 is a deficient number, since it is larger than the sum of its proper divisors (30021).

84219 is a wasteful number, since it uses less digits than its factorization.

84219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its digits is 576, while the sum is 24.

The square root of 84219 is about 290.2050998863. The cubic root of 84219 is about 43.8332184775.

It can be divided in two parts, 842 and 19, that added together give a triangular number (861 = T41).

The spelling of 84219 in words is "eighty-four thousand, two hundred nineteen".

Divisors: 1 3 67 201 419 1257 28073 84219