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3287009745 = 32573044661
BaseRepresentation
bin1100001111101011…
…1100100111010001
322111002002101200200
43003322330213101
523212433302440
61302100005413
7144312056535
oct30372744721
98432071620
103287009745
111437482088
12778990869
13404cb46a6
14232797bc5
15143888c30
hexc3ebc9d1

3287009745 has 12 divisors (see below), whose sum is σ = 5697483636. Its totient is φ = 1753071840.

The previous prime is 3287009707. The next prime is 3287009767. The reversal of 3287009745 is 5479007823.

It can be written as a sum of positive squares in 2 ways, for example, as 580617216 + 2706392529 = 24096^2 + 52023^2 .

It is not a de Polignac number, because 3287009745 - 214 = 3286993361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 73044661 = 3287009745 / (3 + 2 + 8 + 7 + 0 + 0 + 9 + 7 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3287009745.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36522286 + ... + 36522375.

It is an arithmetic number, because the mean of its divisors is an integer number (474790303).

Almost surely, 23287009745 is an apocalyptic number.

It is an amenable number.

3287009745 is a deficient number, since it is larger than the sum of its proper divisors (2410473891).

3287009745 is a wasteful number, since it uses less digits than its factorization.

3287009745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73044672 (or 73044669 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 3287009745 is about 57332.4493197352. The cubic root of 3287009745 is about 1486.8494523178.

The spelling of 3287009745 in words is "three billion, two hundred eighty-seven million, nine thousand, seven hundred forty-five".

Divisors: 1 3 5 9 15 45 73044661 219133983 365223305 657401949 1095669915 3287009745