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2011301992 = 23769151977
BaseRepresentation
bin111011111100010…
…0000100001101000
312012011121201122101
41313320200201220
513104343130432
6531325103144
7100561533130
oct16770404150
95164551571
102011301992
11942366a57
124816b7ab4
1326090372b
1415119bac0
15bb8964e7
hex77e20868

2011301992 has 32 divisors (see below), whose sum is σ = 4316253120. Its totient is φ = 860722560.

The previous prime is 2011301969. The next prime is 2011301993. The reversal of 2011301992 is 2991031102.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 2011301992.

It is not an unprimeable number, because it can be changed into a prime (2011301993) 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, 12708 + ... + 64684.

It is an arithmetic number, because the mean of its divisors is an integer number (134882910).

Almost surely, 22011301992 is an apocalyptic number.

It is an amenable number.

2011301992 is an abundant number, since it is smaller than the sum of its proper divisors (2304951128).

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

2011301992 is a wasteful number, since it uses less digits than its factorization.

2011301992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52681 (or 52677 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2011301992 is about 44847.5416494594. The cubic root of 2011301992 is about 1262.2898630357.

The spelling of 2011301992 in words is "two billion, eleven million, three hundred one thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 28 56 691 1382 2764 4837 5528 9674 19348 38696 51977 103954 207908 363839 415816 727678 1455356 2910712 35916107 71832214 143664428 251412749 287328856 502825498 1005650996 2011301992