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2775000285 = 325296613217
BaseRepresentation
bin1010010101100111…
…0010010011011101
321011101122121202100
42211121302103131
521140400002120
61135205515313
7125524053561
oct24531622335
97141577670
102775000285
1111a4462872
12655412b39
13352bb6205
141c47976a1
1511394c490
hexa56724dd

2775000285 has 48 divisors (see below), whose sum is σ = 4984939440. Its totient is φ = 1426360320.

The previous prime is 2775000251. The next prime is 2775000289. The reversal of 2775000285 is 5820005772.

2775000285 is a `hidden beast` number, since 2 + 77 + 500 + 0 + 2 + 85 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 294362649 + 2480637636 = 17157^2 + 49806^2 .

It is not a de Polignac number, because 2775000285 - 27 = 2775000157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775000289) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 860997 + ... + 864213.

It is an arithmetic number, because the mean of its divisors is an integer number (103852905).

Almost surely, 22775000285 is an apocalyptic number.

It is an amenable number.

2775000285 is a deficient number, since it is larger than the sum of its proper divisors (2209939155).

2775000285 is a wasteful number, since it uses less digits than its factorization.

2775000285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918 (or 3915 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 2775000285 is about 52678.2714693639. The cubic root of 2775000285 is about 1405.2524269630.

The spelling of 2775000285 in words is "two billion, seven hundred seventy-five million, two hundred eighty-five", and thus it is an aban number.

Divisors: 1 3 5 9 15 29 45 87 145 261 435 661 1305 1983 3217 3305 5949 9651 9915 16085 19169 28953 29745 48255 57507 93293 95845 144765 172521 279879 287535 466465 839637 862605 1399395 2126437 4198185 6379311 10632185 19137933 31896555 61666673 95689665 185000019 308333365 555000057 925000095 2775000285