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2000031313 = 72934728393
BaseRepresentation
bin111011100110110…
…0000111001010001
312011101102010011211
41313031200321101
513044002000223
6530243340121
7100363662040
oct16715407121
95141363154
102000031313
11936a69145
12479981641
1325b4886a7
1414d8a6557
15ba8bbd0d
hex77360e51

2000031313 has 16 divisors (see below), whose sum is σ = 2371466880. Its totient is φ = 1650370176.

The previous prime is 2000031289. The next prime is 2000031347. The reversal of 2000031313 is 3131300002.

It is not a de Polignac number, because 2000031313 - 221 = 1997934161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2000031293 and 2000031302.

It is not an unprimeable number, because it can be changed into a prime (2000031413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56245 + ... + 84637.

It is an arithmetic number, because the mean of its divisors is an integer number (148216680).

Almost surely, 22000031313 is an apocalyptic number.

It is an amenable number.

2000031313 is a deficient number, since it is larger than the sum of its proper divisors (371435567).

2000031313 is a wasteful number, since it uses less digits than its factorization.

2000031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28776.

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

The square root of 2000031313 is about 44721.7096386084. The cubic root of 2000031313 is about 1259.9276251785.

Adding to 2000031313 its reverse (3131300002), we get a palindrome (5131331315).

The spelling of 2000031313 in words is "two billion, thirty-one thousand, three hundred thirteen".

Divisors: 1 7 29 203 347 2429 10063 28393 70441 198751 823397 5763779 9852371 68966597 285718759 2000031313