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2838128382 = 23419922069
BaseRepresentation
bin1010100100101010…
…0110011011111110
321022210102212020000
42221022212123332
521303030102012
61145342535130
7130221456525
oct25112463376
97283385200
102838128382
11122705a951
126725974a6
13362cb9c0b
141ccd0b4bc
1511926bddc
hexa92a66fe

2838128382 has 40 divisors (see below), whose sum is σ = 6694228200. Its totient is φ = 896250096.

The previous prime is 2838128353. The next prime is 2838128437. The reversal of 2838128382 is 2838218382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 457957 + ... + 464112.

It is an arithmetic number, because the mean of its divisors is an integer number (167355705).

Almost surely, 22838128382 is an apocalyptic number.

2838128382 is an abundant number, since it is smaller than the sum of its proper divisors (3856099818).

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

2838128382 is a wasteful number, since it uses less digits than its factorization.

2838128382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922102 (or 922093 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 2838128382 is about 53274.0873408452. The cubic root of 2838128382 is about 1415.8285935153.

Subtracting 2838128382 from its reverse (2838218382), we obtain a square (90000 = 3002).

The spelling of 2838128382 in words is "two billion, eight hundred thirty-eight million, one hundred twenty-eight thousand, three hundred eighty-two".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 81 114 162 171 342 513 1026 1539 3078 922069 1844138 2766207 5532414 8298621 16597242 17519311 24895863 35038622 49791726 52557933 74687589 105115866 149375178 157673799 315347598 473021397 946042794 1419064191 2838128382