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38063609918 = 2371978832957
BaseRepresentation
bin100011011100110001…
…001001100000111110
310122020201101201200022
4203130301021200332
51110423241004133
625253003132142
72515152226445
oct433461114076
9118221351608
1038063609918
1115162a08564
127463514052
133787b4a309
141bb134dd5c
15ecb9db998
hex8dcc4983e

38063609918 has 32 divisors (see below), whose sum is σ = 59022890784. Its totient is φ = 18396346752.

The previous prime is 38063609897. The next prime is 38063609921. The reversal of 38063609918 is 81990636083.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 38063609918.

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, 12870896 + ... + 12873852.

It is an arithmetic number, because the mean of its divisors is an integer number (1844465337).

Almost surely, 238063609918 is an apocalyptic number.

38063609918 is a deficient number, since it is larger than the sum of its proper divisors (20959280866).

38063609918 is a wasteful number, since it uses less digits than its factorization.

38063609918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4076.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 38063609918 in words is "thirty-eight billion, sixty-three million, six hundred nine thousand, nine hundred eighteen".

Divisors: 1 2 37 74 197 394 883 1766 2957 5914 7289 14578 32671 65342 109409 173951 218818 347902 582529 1165058 2611031 5222062 6436187 12872374 21553573 43107146 96608147 193216294 514373107 1028746214 19031804959 38063609918