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3130009 = 5953051
BaseRepresentation
bin1011111100001010011001
312220000120021
423330022121
51300130014
6151030441
735414251
oct13741231
95800507
103130009
111848693
12106b421
1385789c
145b6961
1541c624
hex2fc299

3130009 has 4 divisors (see below), whose sum is σ = 3183120. Its totient is φ = 3076900.

The previous prime is 3130007. The next prime is 3130019. The reversal of 3130009 is 9000313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9000313 = 71285759.

It is a cyclic number.

It is not a de Polignac number, because 3130009 - 21 = 3130007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3129974 and 3130001.

It is not an unprimeable number, because it can be changed into a prime (3130007) 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, 26467 + ... + 26584.

It is an arithmetic number, because the mean of its divisors is an integer number (795780).

Almost surely, 23130009 is an apocalyptic number.

It is an amenable number.

3130009 is a deficient number, since it is larger than the sum of its proper divisors (53111).

3130009 is an equidigital number, since it uses as much as digits as its factorization.

3130009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53110.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 3130009 is about 1769.1831448440. The cubic root of 3130009 is about 146.2789593711.

The spelling of 3130009 in words is "three million, one hundred thirty thousand, nine".

Divisors: 1 59 53051 3130009