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3130213 = 11327701
BaseRepresentation
bin1011111100001101100101
312220000211211
423330031211
51300131323
6151031421
735414662
oct13741545
95800754
103130213
111848859
12106b571
138579c8
145b6a69
1541c70d
hex2fc365

3130213 has 4 divisors (see below), whose sum is σ = 3158028. Its totient is φ = 3102400.

The previous prime is 3130207. The next prime is 3130229. The reversal of 3130213 is 3120313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 515524 + 2614689 = 718^2 + 1617^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130213 - 29 = 3129701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130193 and 3130202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130243) 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 3 ways as a sum of consecutive naturals, for example, 13738 + ... + 13963.

It is an arithmetic number, because the mean of its divisors is an integer number (789507).

Almost surely, 23130213 is an apocalyptic number.

It is an amenable number.

3130213 is a deficient number, since it is larger than the sum of its proper divisors (27815).

3130213 is a wasteful number, since it uses less digits than its factorization.

3130213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27814.

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

The square root of 3130213 is about 1769.2407976304. The cubic root of 3130213 is about 146.2821372384.

Adding to 3130213 its reverse (3120313), we get a palindrome (6250526).

The spelling of 3130213 in words is "three million, one hundred thirty thousand, two hundred thirteen".

Divisors: 1 113 27701 3130213