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2838545285 = 5567709057
BaseRepresentation
bin1010100100110000…
…1100001110000101
321022211020001002212
42221030030032011
521303131422120
61145355513205
7130225144142
oct25114141605
97284201085
102838545285
1112273150a4
12672758805
133631048c4
141ccdb93c9
151193006c5
hexa930c385

2838545285 has 4 divisors (see below), whose sum is σ = 3406254348. Its totient is φ = 2270836224.

The previous prime is 2838545279. The next prime is 2838545291. The reversal of 2838545285 is 5825458382.

It is a Cunningham number, because it is equal to 532782+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5825458382 = 22912729191.

It is an interprime number because it is at equal distance from previous prime (2838545279) and next prime (2838545291).

It can be written as a sum of positive squares in 2 ways, for example, as 1021825156 + 1816720129 = 31966^2 + 42623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2838545285 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 283854524 + ... + 283854533.

It is an arithmetic number, because the mean of its divisors is an integer number (851563587).

Almost surely, 22838545285 is an apocalyptic number.

It is an amenable number.

2838545285 is a deficient number, since it is larger than the sum of its proper divisors (567709063).

2838545285 is an equidigital number, since it uses as much as digits as its factorization.

2838545285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567709062.

The product of its digits is 3072000, while the sum is 50.

The square root of 2838545285 is about 53278.0000093847. Note that the first 5 decimals coincide. The cubic root of 2838545285 is about 1415.8979155248.

The spelling of 2838545285 in words is "two billion, eight hundred thirty-eight million, five hundred forty-five thousand, two hundred eighty-five".

Divisors: 1 5 567709057 2838545285