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3130405133 = 23136104571
BaseRepresentation
bin1011101010010110…
…0011000100001101
322002011102001112212
42322211203010031
522402340431013
61234343240205
7140401001402
oct27245430415
98064361485
103130405133
111367039789
12734449065
133ab71253b
14219a702a9
15134c526a8
hexba96310d

3130405133 has 4 divisors (see below), whose sum is σ = 3266509728. Its totient is φ = 2994300540.

The previous prime is 3130405043. The next prime is 3130405193. The reversal of 3130405133 is 3315040313.

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: 3315040313 = 13255003101.

It is not a de Polignac number, because 3130405133 - 28 = 3130404877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 136104571 = 3130405133 / (3 + 1 + 3 + 0 + 4 + 0 + 5 + 1 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3130405099 and 3130405108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130405193) 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, 68052263 + ... + 68052308.

It is an arithmetic number, because the mean of its divisors is an integer number (816627432).

Almost surely, 23130405133 is an apocalyptic number.

It is an amenable number.

3130405133 is a deficient number, since it is larger than the sum of its proper divisors (136104595).

3130405133 is a wasteful number, since it uses less digits than its factorization.

3130405133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136104594.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 3130405133 is about 55950.0235299325. The cubic root of 3130405133 is about 1462.8513011785.

Adding to 3130405133 its reverse (3315040313), we get a palindrome (6445445446).

The spelling of 3130405133 in words is "three billion, one hundred thirty million, four hundred five thousand, one hundred thirty-three".

Divisors: 1 23 136104571 3130405133