Search a number
-
+
1208223 = 3373613
BaseRepresentation
bin100100110111110011111
32021101101000
410212332133
5302130343
641521343
713161342
oct4467637
92241330
101208223
11755835
124a3253
13333c33
14236459
1518ced3
hex126f9f

1208223 has 16 divisors (see below), whose sum is σ = 1817440. Its totient is φ = 793152.

The previous prime is 1208219. The next prime is 1208237. The reversal of 1208223 is 3228021.

It is a happy number.

It is not a de Polignac number, because 1208223 - 22 = 1208219 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1208196 and 1208205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665 + ... + 2277.

It is an arithmetic number, because the mean of its divisors is an integer number (113590).

21208223 is an apocalyptic number.

1208223 is a deficient number, since it is larger than the sum of its proper divisors (609217).

1208223 is an equidigital number, since it uses as much as digits as its factorization.

1208223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1208223 is about 1099.1919759532. The cubic root of 1208223 is about 106.5080335142.

It can be divided in two parts, 1208 and 223, that added together give a triangular number (1431 = T53).

The spelling of 1208223 in words is "one million, two hundred eight thousand, two hundred twenty-three".

Divisors: 1 3 9 27 73 219 613 657 1839 1971 5517 16551 44749 134247 402741 1208223