[go: up one dir, main page]

Search a number
-
+
4384213 = 5382721
BaseRepresentation
bin10000101110010111010101
322020202000021
4100232113111
52110243323
6233545141
752156651
oct20562725
98222007
104384213
112524a19
1215751b1
13ba6712
14821a61
155b905d
hex42e5d5

4384213 has 4 divisors (see below), whose sum is σ = 4466988. Its totient is φ = 4301440.

The previous prime is 4384189. The next prime is 4384243. The reversal of 4384213 is 3124834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3124834 = 21562417.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 2553604 = 1353^2 + 1598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4384213 is a prime.

It is a Duffinian number.

4384213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4384243) 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, 41308 + ... + 41413.

It is an arithmetic number, because the mean of its divisors is an integer number (1116747).

Almost surely, 24384213 is an apocalyptic number.

It is an amenable number.

4384213 is a deficient number, since it is larger than the sum of its proper divisors (82775).

4384213 is an equidigital number, since it uses as much as digits as its factorization.

4384213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82774.

The product of its digits is 2304, while the sum is 25.

The square root of 4384213 is about 2093.8512363585. The cubic root of 4384213 is about 163.6680400986.

The spelling of 4384213 in words is "four million, three hundred eighty-four thousand, two hundred thirteen".

Divisors: 1 53 82721 4384213