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3019013 = 17177589
BaseRepresentation
bin1011100001000100000101
312200101022022
423201010011
51233102023
6144412525
734442534
oct13410405
95611268
103019013
111782258
121017145
138191ca
1458831b
153e97c8
hex2e1105

3019013 has 4 divisors (see below), whose sum is σ = 3196620. Its totient is φ = 2841408.

The previous prime is 3018989. The next prime is 3019019. The reversal of 3019013 is 3109103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3109103 = 19163637.

It can be written as a sum of positive squares in 2 ways, for example, as 1295044 + 1723969 = 1138^2 + 1313^2 .

It is a cyclic number.

It is not a de Polignac number, because 3019013 - 26 = 3018949 is a prime.

It is a super-2 number, since 2×30190132 = 18228878988338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 177589 = 3019013 / (3 + 0 + 1 + 9 + 0 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3018982 and 3019000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3019019) 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, 88778 + ... + 88811.

It is an arithmetic number, because the mean of its divisors is an integer number (799155).

Almost surely, 23019013 is an apocalyptic number.

It is an amenable number.

3019013 is a deficient number, since it is larger than the sum of its proper divisors (177607).

3019013 is a wasteful number, since it uses less digits than its factorization.

3019013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177606.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 3019013 is about 1737.5307191529. The cubic root of 3019013 is about 144.5289988615.

It can be divided in two parts, 30190 and 13, that added together give a palindrome (30203).

The spelling of 3019013 in words is "three million, nineteen thousand, thirteen".

Divisors: 1 17 177589 3019013