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2838138 = 231992377
BaseRepresentation
bin1010110100111001111010
312100012012020
422310321322
51211310023
6140455310
733060312
oct12647172
95305166
102838138
111669376
12b4a536
13784a94
1453c442
153b0de3
hex2b4e7a

2838138 has 16 divisors (see below), whose sum is σ = 5707200. Its totient is φ = 940896.

The previous prime is 2838137. The next prime is 2838139. The reversal of 2838138 is 8318382.

It is an interprime number because it is at equal distance from previous prime (2838137) and next prime (2838139).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2838099 and 2838108.

It is not an unprimeable number, because it can be changed into a prime (2838137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 2382.

It is an arithmetic number, because the mean of its divisors is an integer number (356700).

22838138 is an apocalyptic number.

2838138 is an abundant number, since it is smaller than the sum of its proper divisors (2869062).

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

2838138 is a wasteful number, since it uses less digits than its factorization.

2838138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2581.

The product of its digits is 9216, while the sum is 33.

The square root of 2838138 is about 1684.6774171930. The cubic root of 2838138 is about 141.5830192858.

The spelling of 2838138 in words is "two million, eight hundred thirty-eight thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 199 398 597 1194 2377 4754 7131 14262 473023 946046 1419069 2838138