Search a number
-
+
10260878857 is a prime number
BaseRepresentation
bin10011000111001100…
…01001011000001001
3222111002122122122021
421203212021120021
5132003241110412
64414102124441
7512163013465
oct114346113011
928432578567
1010260878857
114395aa9179
121ba4420721
13c76a6b768
146d4a714a5
15400c40607
hex263989609

10260878857 has 2 divisors, whose sum is σ = 10260878858. Its totient is φ = 10260878856.

The previous prime is 10260878843. The next prime is 10260878863. The reversal of 10260878857 is 75887806201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5425206336 + 4835672521 = 73656^2 + 69539^2 .

It is an emirp because it is prime and its reverse (75887806201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10260878857 is a prime.

It is not a weakly prime, because it can be changed into another prime (10260878867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130439428 + 5130439429.

It is an arithmetic number, because the mean of its divisors is an integer number (5130439429).

Almost surely, 210260878857 is an apocalyptic number.

It is an amenable number.

10260878857 is a deficient number, since it is larger than the sum of its proper divisors (1).

10260878857 is an equidigital number, since it uses as much as digits as its factorization.

10260878857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 10260878857 in words is "ten billion, two hundred sixty million, eight hundred seventy-eight thousand, eight hundred fifty-seven".