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82814223 = 327604741
BaseRepresentation
bin1001110111110…
…10010100001111
312202211101202110
410323322110033
5132200023343
612114555103
72023623612
oct473722417
9182741673
1082814223
1142823608
1223898a93
13142072cb
14adda179
15740c833
hex4efa50f

82814223 has 4 divisors (see below), whose sum is σ = 110418968. Its totient is φ = 55209480.

The previous prime is 82814213. The next prime is 82814231. The reversal of 82814223 is 32241828.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 82814223 - 29 = 82813711 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 (82814213) 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, 13802368 + ... + 13802373.

It is an arithmetic number, because the mean of its divisors is an integer number (27604742).

Almost surely, 282814223 is an apocalyptic number.

82814223 is a deficient number, since it is larger than the sum of its proper divisors (27604745).

82814223 is a wasteful number, since it uses less digits than its factorization.

82814223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27604744.

The product of its digits is 6144, while the sum is 30.

The square root of 82814223 is about 9100.2320300089. The cubic root of 82814223 is about 435.8813732625.

It can be divided in two parts, 828 and 14223, that added together give a palindrome (15051).

The spelling of 82814223 in words is "eighty-two million, eight hundred fourteen thousand, two hundred twenty-three".

Divisors: 1 3 27604741 82814223