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45390550317 = 372903744559
BaseRepresentation
bin101010010001011111…
…001101010100101101
311100011100022212101020
4222101133031110231
51220424440102232
632504021004353
73164551211640
oct522137152455
9140140285336
1045390550317
1118282867302
1289692536b9
134384ac44c8
1422a8493a57
1512a9d86e2c
hexa917cd52d

45390550317 has 16 divisors (see below), whose sum is σ = 69190471680. Its totient is φ = 25928487792.

The previous prime is 45390550291. The next prime is 45390550333. The reversal of 45390550317 is 71305509354.

It is not a de Polignac number, because 45390550317 - 26 = 45390550253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45390510317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311317 + ... + 433242.

It is an arithmetic number, because the mean of its divisors is an integer number (4324404480).

Almost surely, 245390550317 is an apocalyptic number.

It is an amenable number.

45390550317 is a deficient number, since it is larger than the sum of its proper divisors (23799921363).

45390550317 is a wasteful number, since it uses less digits than its factorization.

45390550317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747472.

The product of its (nonzero) digits is 283500, while the sum is 42.

The spelling of 45390550317 in words is "forty-five billion, three hundred ninety million, five hundred fifty thousand, three hundred seventeen".

Divisors: 1 3 7 21 2903 8709 20321 60963 744559 2233677 5211913 15635739 2161454777 6484364331 15130183439 45390550317