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39382120512811 = 178971597363551
BaseRepresentation
bin10001111010001010111010…
…10011011011110100101011
312011102220010200122220022001
420331011131103123310223
520130214040322402221
6215431521342311431
711203156442051626
oct1075053523336453
9164386120586261
1039382120512811
111160395538118a
124500628588577
1318c894468314b
149a2167818dbd
1548464539d391
hex23d15d4dbd2b

39382120512811 has 16 divisors (see below), whose sum is σ = 42167945675520. Its totient is φ = 36648445926400.

The previous prime is 39382120512809. The next prime is 39382120512907. The reversal of 39382120512811 is 11821502128393.

It is a cyclic number.

It is not a de Polignac number, because 39382120512811 - 21 = 39382120512809 is a prime.

It is a super-3 number, since 3×393821205128113 (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39382120512011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108144486 + ... + 108508036.

It is an arithmetic number, because the mean of its divisors is an integer number (2635496604720).

Almost surely, 239382120512811 is an apocalyptic number.

39382120512811 is a deficient number, since it is larger than the sum of its proper divisors (2785825162709).

39382120512811 is a wasteful number, since it uses less digits than its factorization.

39382120512811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435254.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 39382120512811 in words is "thirty-nine trillion, three hundred eighty-two billion, one hundred twenty million, five hundred twelve thousand, eight hundred eleven".

Divisors: 1 17 89 1513 71597 363551 1217149 6180367 6372133 32356039 108326261 550052663 26029160947 442495736099 2316595324283 39382120512811