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56051701 = 87763913
BaseRepresentation
bin1101010111010…
…0011111110101
310220110201110221
43111310133311
5103322123301
65321214341
71250301016
oct325643765
9126421427
1056051701
1129704522
12169313b1
13b7c6ab4
14763100d
154dc2da1
hex35747f5

56051701 has 4 divisors (see below), whose sum is σ = 56116492. Its totient is φ = 55986912.

The previous prime is 56051659. The next prime is 56051773. The reversal of 56051701 is 10715065.

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 40259025 + 15792676 = 6345^2 + 3974^2 .

It is a cyclic number.

It is not a de Polignac number, because 56051701 - 27 = 56051573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56051791) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31080 + ... + 32833.

It is an arithmetic number, because the mean of its divisors is an integer number (14029123).

Almost surely, 256051701 is an apocalyptic number.

It is an amenable number.

56051701 is a deficient number, since it is larger than the sum of its proper divisors (64791).

56051701 is an equidigital number, since it uses as much as digits as its factorization.

56051701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64790.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 56051701 is about 7486.7683949752. The cubic root of 56051701 is about 382.7039389767.

Adding to 56051701 its reverse (10715065), we get a palindrome (66766766).

The spelling of 56051701 in words is "fifty-six million, fifty-one thousand, seven hundred one".

Divisors: 1 877 63913 56051701