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38340647185 = 573105042869
BaseRepresentation
bin100011101101010001…
…111101100100010001
310122222000200200100211
4203231101331210101
51112010201202220
625340301044121
72525055060331
oct435521754421
9118860620324
1038340647185
1115295328785
127520256641
1338003682a9
141bda0670c1
15ee5eb1b5a
hex8ed47d911

38340647185 has 8 divisors (see below), whose sum is σ = 46639034280. Its totient is φ = 30252345984.

The previous prime is 38340647183. The next prime is 38340647227. The reversal of 38340647185 is 58174604383.

38340647185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2788790481 + 35551856704 = 52809^2 + 188552^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38340647185 - 21 = 38340647183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38340647183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52521070 + ... + 52521799.

It is an arithmetic number, because the mean of its divisors is an integer number (5829879285).

Almost surely, 238340647185 is an apocalyptic number.

It is an amenable number.

38340647185 is a deficient number, since it is larger than the sum of its proper divisors (8298387095).

38340647185 is a wasteful number, since it uses less digits than its factorization.

38340647185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105042947.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 38340647185 in words is "thirty-eight billion, three hundred forty million, six hundred forty-seven thousand, one hundred eighty-five".

Divisors: 1 5 73 365 105042869 525214345 7668129437 38340647185