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51705041 = 173041473
BaseRepresentation
bin1100010100111…
…1010011010001
310121021212222112
43011033103101
5101214030131
65044115105
71165325363
oct305172321
9117255875
1051705041
1127205843
1215395a95
13a9344cb
146c1cd33
15481502b
hex314f4d1

51705041 has 4 divisors (see below), whose sum is σ = 54746532. Its totient is φ = 48663552.

The previous prime is 51705013. The next prime is 51705047. The reversal of 51705041 is 14050715.

51705041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25654225 + 26050816 = 5065^2 + 5104^2 .

It is a cyclic number.

It is not a de Polignac number, because 51705041 - 214 = 51688657 is a prime.

It is a super-2 number, since 2×517050412 = 5346822529623362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51704998 and 51705016.

It is not an unprimeable number, because it can be changed into a prime (51705047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520720 + ... + 1520753.

It is an arithmetic number, because the mean of its divisors is an integer number (13686633).

Almost surely, 251705041 is an apocalyptic number.

It is an amenable number.

51705041 is a deficient number, since it is larger than the sum of its proper divisors (3041491).

51705041 is a wasteful number, since it uses less digits than its factorization.

51705041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041490.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 51705041 is about 7190.6217394604. The cubic root of 51705041 is about 372.5440477618.

Adding to 51705041 its reverse (14050715), we get a palindrome (65755756).

The spelling of 51705041 in words is "fifty-one million, seven hundred five thousand, forty-one".

Divisors: 1 17 3041473 51705041