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2011312310 = 257215832593
BaseRepresentation
bin111011111100010…
…0011000010110110
312012011122020210112
41313320203002312
513104343443220
6531325223022
7100561605200
oct16770430266
95164566715
102011312310
11942373787
12481701a72
13260908337
141511a1770
15bb8995c5
hex77e230b6

2011312310 has 48 divisors (see below), whose sum is σ = 4215727296. Its totient is φ = 688891392.

The previous prime is 2011312307. The next prime is 2011312319. The reversal of 2011312310 is 132131102.

It is a super-2 number, since 2×20113123102 = 8090754416715072200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011312319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 774374 + ... + 776966.

It is an arithmetic number, because the mean of its divisors is an integer number (87827652).

Almost surely, 22011312310 is an apocalyptic number.

2011312310 is an abundant number, since it is smaller than the sum of its proper divisors (2204414986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011312310 is a wasteful number, since it uses less digits than its factorization.

2011312310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197 (or 4190 counting only the distinct ones).

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

The square root of 2011312310 is about 44847.6566834879. The cubic root of 2011312310 is about 1262.2920215520.

Adding to 2011312310 its reverse (132131102), we get a palindrome (2143443412).

It can be divided in two parts, 20113 and 12310, that added together give a palindrome (32423).

The spelling of 2011312310 in words is "two billion, eleven million, three hundred twelve thousand, three hundred ten".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 1583 2593 3166 5186 7915 11081 12965 15830 18151 22162 25930 36302 55405 77567 90755 110810 127057 155134 181510 254114 387835 635285 775670 1270570 4104719 8209438 20523595 28733033 41047190 57466066 143665165 201131231 287330330 402262462 1005656155 2011312310