Search a number
-
+
1223013 = 31137061
BaseRepresentation
bin100101010100101100101
32022010122210
410222211211
5303114023
642114033
713252431
oct4524545
92263583
101223013
11765960
124ab919
1333a89c
1423b9c1
15192593
hex12a965

1223013 has 8 divisors (see below), whose sum is σ = 1778976. Its totient is φ = 741200.

The previous prime is 1223003. The next prime is 1223021. The reversal of 1223013 is 3103221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223013 - 28 = 1222757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18498 + ... + 18563.

It is an arithmetic number, because the mean of its divisors is an integer number (222372).

21223013 is an apocalyptic number.

It is an amenable number.

1223013 is a deficient number, since it is larger than the sum of its proper divisors (555963).

1223013 is a wasteful number, since it uses less digits than its factorization.

1223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37075.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1223013 is about 1105.8991816617. The cubic root of 1223013 is about 106.9408646366.

Adding to 1223013 its reverse (3103221), we get a palindrome (4326234).

The spelling of 1223013 in words is "one million, two hundred twenty-three thousand, thirteen".

Divisors: 1 3 11 33 37061 111183 407671 1223013