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3031320113 = 5951378307
BaseRepresentation
bin1011010010101110…
…0100011000110001
321211020222000110022
42310223210120301
522202004220423
61220443413225
7135055536653
oct26453443061
97736860408
103031320113
111316112738
12707224215
1339402c353
1420a83a6d3
1512b1cddc8
hexb4ae4631

3031320113 has 4 divisors (see below), whose sum is σ = 3082698480. Its totient is φ = 2979941748.

The previous prime is 3031320101. The next prime is 3031320143. The reversal of 3031320113 is 3110231303.

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: 3110231303 = 5363357991.

It is a cyclic number.

It is not a de Polignac number, because 3031320113 - 26 = 3031320049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3031320091 and 3031320100.

It is not an unprimeable number, because it can be changed into a prime (3031320143) 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, 25689095 + ... + 25689212.

It is an arithmetic number, because the mean of its divisors is an integer number (770674620).

Almost surely, 23031320113 is an apocalyptic number.

It is an amenable number.

3031320113 is a deficient number, since it is larger than the sum of its proper divisors (51378367).

3031320113 is an equidigital number, since it uses as much as digits as its factorization.

3031320113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51378366.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 3031320113 is about 55057.4255936472. The cubic root of 3031320113 is about 1447.2512511805.

Adding to 3031320113 its reverse (3110231303), we get a palindrome (6141551416).

The spelling of 3031320113 in words is "three billion, thirty-one million, three hundred twenty thousand, one hundred thirteen".

Divisors: 1 59 51378307 3031320113