Search a number
-
+
26300081 = 37710813
BaseRepresentation
bin110010001010…
…0111010110001
31211111011221002
41210110322301
523213100311
62335411345
7436355423
oct144247261
954434832
1026300081
1113933705
128983b55
1355aaba2
1436c8813
15249793b
hex1914eb1

26300081 has 4 divisors (see below), whose sum is σ = 27010932. Its totient is φ = 25589232.

The previous prime is 26300069. The next prime is 26300083. The reversal of 26300081 is 18000362.

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 25090081 + 1210000 = 5009^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 26300081 - 210 = 26299057 is a prime.

It is a super-2 number, since 2×263000812 = 1383388521213122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26300083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355370 + ... + 355443.

It is an arithmetic number, because the mean of its divisors is an integer number (6752733).

Almost surely, 226300081 is an apocalyptic number.

It is an amenable number.

26300081 is a deficient number, since it is larger than the sum of its proper divisors (710851).

26300081 is an equidigital number, since it uses as much as digits as its factorization.

26300081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710850.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 26300081 is about 5128.3604592501. The cubic root of 26300081 is about 297.3849791924.

The spelling of 26300081 in words is "twenty-six million, three hundred thousand, eighty-one".

Divisors: 1 37 710813 26300081