[go: up one dir, main page]

Search a number
-
+
26438857 is a prime number
BaseRepresentation
bin110010011011…
…0110011001001
31211202020021221
41210312303021
523232020412
62342402041
7440504134
oct144666311
954666257
1026438857
1113a189a5
128a30321
1356290c3
14372321b
1524c3b07
hex1936cc9

26438857 has 2 divisors, whose sum is σ = 26438858. Its totient is φ = 26438856.

The previous prime is 26438777. The next prime is 26438869. The reversal of 26438857 is 75883462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23970816 + 2468041 = 4896^2 + 1571^2 .

It is a cyclic number.

It is not a de Polignac number, because 26438857 - 27 = 26438729 is a prime.

It is not a weakly prime, because it can be changed into another prime (26438887) 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 as a sum of consecutive naturals, namely, 13219428 + 13219429.

It is an arithmetic number, because the mean of its divisors is an integer number (13219429).

Almost surely, 226438857 is an apocalyptic number.

It is an amenable number.

26438857 is a deficient number, since it is larger than the sum of its proper divisors (1).

26438857 is an equidigital number, since it uses as much as digits as its factorization.

26438857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The square root of 26438857 is about 5141.8729078031. The cubic root of 26438857 is about 297.9071261413.

The spelling of 26438857 in words is "twenty-six million, four hundred thirty-eight thousand, eight hundred fifty-seven".