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38388173041 = 1959292
BaseRepresentation
bin100011110000000111…
…010000100011110001
310200002100010020120201
4203300013100203301
51112104333014131
625345115435201
72526203041561
oct436007204361
9120070106521
1038388173041
111530a139649
127534155b01
13380a1684ba
141c024b8da1
15eea24d761
hex8f01d08f1

38388173041 has 3 divisors (see below), whose sum is σ = 38388368971. Its totient is φ = 38387977112.

The previous prime is 38388173029. The next prime is 38388173071. The reversal of 38388173041 is 14037188383.

The square root of 38388173041 is 195929.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14037188383 = 53264852611.

It can be written as a sum of positive squares in only one way, i.e., 8625022641 + 29763150400 = 92871^2 + 172520^2 .

It is not a de Polignac number, because 38388173041 - 211 = 38388170993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38388172982 and 38388173000.

It is not an unprimeable number, because it can be changed into a prime (38388173071) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 97965 + ... + 293893.

Almost surely, 238388173041 is an apocalyptic number.

38388173041 is the 195929-th square number.

38388173041 is the 97965-th centered octagonal number.

It is an amenable number.

38388173041 is a deficient number, since it is larger than the sum of its proper divisors (195930).

38388173041 is an frugal number, since it uses more digits than its factorization.

38388173041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391858 (or 195929 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 38388173041 in words is "thirty-eight billion, three hundred eighty-eight million, one hundred seventy-three thousand, forty-one".

Divisors: 1 195929 38388173041