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2865132485 = 51761552581
BaseRepresentation
bin1010101011000110…
…0111001111000101
321101200020210212222
42222301213033011
521331433214420
61152145422125
7131000136635
oct25261471705
97350223788
102865132485
111240324496
1267b63a945
13368783387
141d273a6c5
1511b803225
hexaac673c5

2865132485 has 16 divisors (see below), whose sum is σ = 3700089072. Its totient is φ = 2121907200.

The previous prime is 2865132467. The next prime is 2865132539. The reversal of 2865132485 is 5842315682.

It can be written as a sum of positive squares in 8 ways, for example, as 788598724 + 2076533761 = 28082^2 + 45569^2 .

It is a de Polignac number, because none of the positive numbers 2k-2865132485 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271106 + ... + 281475.

It is an arithmetic number, because the mean of its divisors is an integer number (231255567).

Almost surely, 22865132485 is an apocalyptic number.

It is an amenable number.

2865132485 is a deficient number, since it is larger than the sum of its proper divisors (834956587).

2865132485 is a wasteful number, since it uses less digits than its factorization.

2865132485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552664.

The product of its digits is 460800, while the sum is 44.

The square root of 2865132485 is about 53526.9323331722. The cubic root of 2865132485 is about 1420.3048484228.

The spelling of 2865132485 in words is "two billion, eight hundred sixty-five million, one hundred thirty-two thousand, four hundred eighty-five".

Divisors: 1 5 17 61 85 305 1037 5185 552581 2762905 9393877 33707441 46969385 168537205 573026497 2865132485