Search a number
-
+
260285801 is a prime number
BaseRepresentation
bin11111000001110…
…10010101101001
3200010202212222212
433200322111221
51013113121201
641454454505
76310251506
oct1740722551
9603685885
10260285801
11123a19636
1273204435
1341c04389
14267d64ad
1517cb6abb
hexf83a569

260285801 has 2 divisors, whose sum is σ = 260285802. Its totient is φ = 260285800.

The previous prime is 260285771. The next prime is 260285813. The reversal of 260285801 is 108582062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252778201 + 7507600 = 15899^2 + 2740^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-260285801 is a prime.

It is a super-3 number, since 3×2602858013 (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (260285881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130142900 + 130142901.

It is an arithmetic number, because the mean of its divisors is an integer number (130142901).

Almost surely, 2260285801 is an apocalyptic number.

It is an amenable number.

260285801 is a deficient number, since it is larger than the sum of its proper divisors (1).

260285801 is an equidigital number, since it uses as much as digits as its factorization.

260285801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 260285801 is about 16133.3753752896. The cubic root of 260285801 is about 638.4842065704.

The spelling of 260285801 in words is "two hundred sixty million, two hundred eighty-five thousand, eight hundred one".