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2011012313 = 101155312821
BaseRepresentation
bin111011111011101…
…1001110011011001
312012011002000021112
41313313121303121
513104304343223
6531314550105
7100556215442
oct16767316331
95164060245
102011012313
11942189352
12481598335
1326083191b
141511242c9
15bb83a778
hex77dd9cd9

2011012313 has 8 divisors (see below), whose sum is σ = 2032389576. Its totient is φ = 1989664000.

The previous prime is 2011012301. The next prime is 2011012319. The reversal of 2011012313 is 3132101102.

It can be written as a sum of positive squares in 4 ways, for example, as 65496649 + 1945515664 = 8093^2 + 44108^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011012313 - 218 = 2010750169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2011012319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150443 + ... + 163263.

It is an arithmetic number, because the mean of its divisors is an integer number (254048697).

Almost surely, 22011012313 is an apocalyptic number.

It is an amenable number.

2011012313 is a deficient number, since it is larger than the sum of its proper divisors (21377263).

2011012313 is a wasteful number, since it uses less digits than its factorization.

2011012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2011012313 is about 44844.3119358520. The cubic root of 2011012313 is about 1262.2292594361.

Adding to 2011012313 its reverse (3132101102), we get a palindrome (5143113415).

It can be divided in two parts, 20110 and 12313, that added together give a palindrome (32423).

The spelling of 2011012313 in words is "two billion, eleven million, twelve thousand, three hundred thirteen".

Divisors: 1 101 1553 12821 156853 1294921 19911013 2011012313