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3130133213 = 4766598579
BaseRepresentation
bin1011101010010010…
…0000101011011101
322002010220020112202
42322210200223131
522402303230323
61234333341245
7140365456544
oct27244405335
98063806482
103130133213
111366973459
12734337825
133ab64883c
142199dd15b
15134bebd28
hexba920add

3130133213 has 4 divisors (see below), whose sum is σ = 3196731840. Its totient is φ = 3063534588.

The previous prime is 3130133203. The next prime is 3130133219. The reversal of 3130133213 is 3123310313.

3130133213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 3123310313 = 13212364353.

It is a cyclic number.

It is not a de Polignac number, because 3130133213 - 210 = 3130132189 is a prime.

It is a super-2 number, since 2×31301332132 = 19595467862251406738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130133219) 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, 33299243 + ... + 33299336.

It is an arithmetic number, because the mean of its divisors is an integer number (799182960).

Almost surely, 23130133213 is an apocalyptic number.

It is an amenable number.

3130133213 is a deficient number, since it is larger than the sum of its proper divisors (66598627).

3130133213 is an equidigital number, since it uses as much as digits as its factorization.

3130133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66598626.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 3130133213 is about 55947.5934513720. The cubic root of 3130133213 is about 1462.8089435042.

Adding to 3130133213 its reverse (3123310313), we get a palindrome (6253443526).

The spelling of 3130133213 in words is "three billion, one hundred thirty million, one hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 47 66598579 3130133213