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3120303113 = 21397145829
BaseRepresentation
bin1011100111111100…
…0000110000001001
322001110101211011222
42321333000300021
522342244144423
61233342531425
7140216065424
oct27177006011
98043354158
103120303113
111361369a04
12730b96b75
133a95b6405
142185a09bb
15133e093c8
hexb9fc0c09

3120303113 has 4 divisors (see below), whose sum is σ = 3120470340. Its totient is φ = 3120135888.

The previous prime is 3120303091. The next prime is 3120303143. The reversal of 3120303113 is 3113030213.

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 1870822009 + 1249481104 = 43253^2 + 35348^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120303113 - 224 = 3103525897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3120303091 and 3120303100.

It is not an unprimeable number, because it can be changed into a prime (3120303143) 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, 51518 + ... + 94311.

It is an arithmetic number, because the mean of its divisors is an integer number (780117585).

Almost surely, 23120303113 is an apocalyptic number.

It is an amenable number.

3120303113 is a deficient number, since it is larger than the sum of its proper divisors (167227).

3120303113 is a wasteful number, since it uses less digits than its factorization.

3120303113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167226.

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

The square root of 3120303113 is about 55859.6734057764. The cubic root of 3120303113 is about 1461.2760335174.

Adding to 3120303113 its reverse (3113030213), we get a palindrome (6233333326).

The spelling of 3120303113 in words is "three billion, one hundred twenty million, three hundred three thousand, one hundred thirteen".

Divisors: 1 21397 145829 3120303113