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2000319311 = 10718694573
BaseRepresentation
bin111011100111010…
…0111001101001111
312011101221202020102
41313032213031033
513044040204221
6530253441315
7100366301504
oct16716471517
95141852212
102000319311
11937145561
12479aa023b
1325b5597c3
1414d93d4ab
15ba92730b
hex773a734f

2000319311 has 4 divisors (see below), whose sum is σ = 2019013992. Its totient is φ = 1981624632.

The previous prime is 2000319287. The next prime is 2000319319. The reversal of 2000319311 is 1139130002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1139130002 = 2569565001.

It is a cyclic number.

It is not a de Polignac number, because 2000319311 - 222 = 1996125007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000319319) 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, 9347180 + ... + 9347393.

It is an arithmetic number, because the mean of its divisors is an integer number (504753498).

Almost surely, 22000319311 is an apocalyptic number.

2000319311 is a deficient number, since it is larger than the sum of its proper divisors (18694681).

2000319311 is a wasteful number, since it uses less digits than its factorization.

2000319311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18694680.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 2000319311 is about 44724.9294130242. The cubic root of 2000319311 is about 1259.9880974352.

Adding to 2000319311 its reverse (1139130002), we get a palindrome (3139449313).

The spelling of 2000319311 in words is "two billion, three hundred nineteen thousand, three hundred eleven".

Divisors: 1 107 18694573 2000319311