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2012996620 = 2252393531193
BaseRepresentation
bin111011111111011…
…1110010000001100
312012021210211020101
41313332332100030
513110311342440
6531425300444
7100612121545
oct16776762014
95167724211
102012996620
11943314178
12482194724
13261077b7b
141514bd4cc
15bbacd69a
hex77fbe40c

2012996620 has 48 divisors (see below), whose sum is σ = 4260574080. Its totient is φ = 798887936.

The previous prime is 2012996597. The next prime is 2012996627. The reversal of 2012996620 is 266992102.

It is a self number, because there is not a number n which added to its sum of digits gives 2012996620.

It is not an unprimeable number, because it can be changed into a prime (2012996627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1686744 + ... + 1687936.

It is an arithmetic number, because the mean of its divisors is an integer number (88761960).

Almost surely, 22012996620 is an apocalyptic number.

2012996620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012996620 is an abundant number, since it is smaller than the sum of its proper divisors (2247577460).

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

2012996620 is a wasteful number, since it uses less digits than its factorization.

2012996620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1792 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2012996620 is about 44866.4308810050. The cubic root of 2012996620 is about 1262.6442787763.

The spelling of 2012996620 in words is "two billion, twelve million, nine hundred ninety-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 239 353 478 706 956 1193 1195 1412 1765 2386 2390 3530 4772 4780 5965 7060 11930 23860 84367 168734 285127 337468 421129 421835 570254 842258 843670 1140508 1425635 1684516 1687340 2105645 2851270 4211290 5702540 8422580 100649831 201299662 402599324 503249155 1006498310 2012996620