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2838438 = 232712221
BaseRepresentation
bin1010110100111110100110
312100012121100
422310332212
51211312223
6140500530
733061221
oct12647646
95305540
102838438
111669619
12b4a746
13784c65
1453c5b8
153b1043
hex2b4fa6

2838438 has 24 divisors (see below), whose sum is σ = 6239376. Its totient is φ = 932400.

The previous prime is 2838421. The next prime is 2838443. The reversal of 2838438 is 8348382.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 168 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (259974).

22838438 is an apocalyptic number.

2838438 is an abundant number, since it is smaller than the sum of its proper divisors (3400938).

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

2838438 is a wasteful number, since it uses less digits than its factorization.

2838438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300 (or 2297 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 2838438 is about 1684.7664526575. The cubic root of 2838438 is about 141.5880076984.

The spelling of 2838438 in words is "two million, eight hundred thirty-eight thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 71 142 213 426 639 1278 2221 4442 6663 13326 19989 39978 157691 315382 473073 946146 1419219 2838438