Search a number
-
+
3123013 = 73179239
BaseRepresentation
bin1011111010011101000101
312212122222011
423322131011
51244414023
6150534221
735354665
oct13723505
95778864
103123013
111843403
121067371
1385464a
145b41a5
1541a50d
hex2fa745

3123013 has 8 divisors (see below), whose sum is σ = 3196800. Its totient is φ = 3050208.

The previous prime is 3123007. The next prime is 3123023. The reversal of 3123013 is 3103213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3123013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122984 and 3123002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12948 + ... + 13186.

It is an arithmetic number, because the mean of its divisors is an integer number (399600).

Almost surely, 23123013 is an apocalyptic number.

It is an amenable number.

3123013 is a deficient number, since it is larger than the sum of its proper divisors (73787).

3123013 is a wasteful number, since it uses less digits than its factorization.

3123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3123013 is about 1767.2048551314. The cubic root of 3123013 is about 146.1698935501.

Adding to 3123013 its reverse (3103213), we get a palindrome (6226226).

The spelling of 3123013 in words is "three million, one hundred twenty-three thousand, thirteen".

Divisors: 1 73 179 239 13067 17447 42781 3123013