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430216 = 2353777
BaseRepresentation
bin1101001000010001000
3210212010221
41221002020
5102231331
613115424
73441163
oct1510210
9725127
10430216
11274256
12188b74
13120a87
14b2ada
1587711
hex69088

430216 has 8 divisors (see below), whose sum is σ = 806670. Its totient is φ = 215104.

The previous prime is 430193. The next prime is 430259. The reversal of 430216 is 612034.

It can be written as a sum of positive squares in only one way, i.e., 427716 + 2500 = 654^2 + 50^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 430216.

It is an unprimeable number.

430216 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26881 + ... + 26896.

2430216 is an apocalyptic number.

It is an amenable number.

430216 is a deficient number, since it is larger than the sum of its proper divisors (376454).

430216 is a wasteful number, since it uses less digits than its factorization.

430216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53783 (or 53779 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 430216 is about 655.9085302083. The cubic root of 430216 is about 75.4910592749.

It can be divided in two parts, 430 and 216, that added together give a palindrome (646).

The spelling of 430216 in words is "four hundred thirty thousand, two hundred sixteen".

Divisors: 1 2 4 8 53777 107554 215108 430216