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2011828128 = 25343947737
BaseRepresentation
bin111011111101010…
…0000111110100000
312012012121110100220
41313322200332200
513110012000003
6531344243040
7100566154062
oct16772407640
95165543326
102011828128
11942696282
12481910480
13260a5905b
14151297732
15bb94c353
hex77ea0fa0

2011828128 has 48 divisors (see below), whose sum is σ = 5293189440. Its totient is φ = 669067776.

The previous prime is 2011828123. The next prime is 2011828153. The reversal of 2011828128 is 8218281102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×20118281282 = 8094904833223968768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2011828123) 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 7 ways as a sum of consecutive naturals, for example, 18276 + ... + 66012.

It is an arithmetic number, because the mean of its divisors is an integer number (110274780).

Almost surely, 22011828128 is an apocalyptic number.

It is an amenable number.

2011828128 is an abundant number, since it is smaller than the sum of its proper divisors (3281361312).

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

2011828128 is a wasteful number, since it uses less digits than its factorization.

2011828128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48189 (or 48181 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 33.

The square root of 2011828128 is about 44853.4070946678. The cubic root of 2011828128 is about 1262.3999208059.

The spelling of 2011828128 in words is "two billion, eleven million, eight hundred twenty-eight thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 439 878 1317 1756 2634 3512 5268 7024 10536 14048 21072 42144 47737 95474 143211 190948 286422 381896 572844 763792 1145688 1527584 2291376 4582752 20956543 41913086 62869629 83826172 125739258 167652344 251478516 335304688 502957032 670609376 1005914064 2011828128