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422105 = 584421
BaseRepresentation
bin1100111000011011001
3210110000112
41213003121
5102001410
613014105
73405425
oct1470331
9713015
10422105
11269152
12184335
1311a188
14adb85
1585105
hex670d9

422105 has 4 divisors (see below), whose sum is σ = 506532. Its totient is φ = 337680.

The previous prime is 422101. The next prime is 422111. The reversal of 422105 is 501224.

422105 is nontrivially palindromic in base 4.

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

It can be written as a sum of positive squares in 2 ways, for example, as 300304 + 121801 = 548^2 + 349^2 .

It is not a de Polignac number, because 422105 - 22 = 422101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422105.

It is not an unprimeable number, because it can be changed into a prime (422101) 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, 42206 + ... + 42215.

It is an arithmetic number, because the mean of its divisors is an integer number (126633).

2422105 is an apocalyptic number.

It is an amenable number.

422105 is a deficient number, since it is larger than the sum of its proper divisors (84427).

422105 is an equidigital number, since it uses as much as digits as its factorization.

422105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84426.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 422105 is about 649.6960827956. The cubic root of 422105 is about 75.0136271535.

Adding to 422105 its reverse (501224), we get a palindrome (923329).

It can be divided in two parts, 42 and 2105, that multiplied together give a triangular number (88410 = T420).

The spelling of 422105 in words is "four hundred twenty-two thousand, one hundred five".

Divisors: 1 5 84421 422105