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2838100 = 2252101281
BaseRepresentation
bin1010110100111001010100
312100012010211
422310321110
51211304400
6140455204
733060226
oct12647124
95305124
102838100
111669341
12b4a504
13784a65
1453c416
153b0dba
hex2b4e54

2838100 has 36 divisors (see below), whose sum is σ = 6241788. Its totient is φ = 1120000.

The previous prime is 2838091. The next prime is 2838103. The reversal of 2838100 is 18382.

2838100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 161604 + 2676496 = 402^2 + 1636^2 .

It is a super-2 number, since 2×28381002 = 16109623220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2838103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9960 + ... + 10240.

It is an arithmetic number, because the mean of its divisors is an integer number (173383).

22838100 is an apocalyptic number.

2838100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2838100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3120894).

2838100 is an abundant number, since it is smaller than the sum of its proper divisors (3403688).

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

2838100 is a wasteful number, since it uses less digits than its factorization.

2838100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 2838100 is about 1684.6661390317. Note that the first 3 decimals coincide. The cubic root of 2838100 is about 141.5823873952.

The spelling of 2838100 in words is "two million, eight hundred thirty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 101 202 281 404 505 562 1010 1124 1405 2020 2525 2810 5050 5620 7025 10100 14050 28100 28381 56762 113524 141905 283810 567620 709525 1419050 2838100