Search a number
-
+
26006831 = 28192551
BaseRepresentation
bin110001100110…
…1010100101111
31210221021122222
41203031110233
523124204311
62325225555
7434024444
oct143152457
953837588
1026006831
1113753354
1288622bb
135507576
14364d9cb
15243aadb
hex18cd52f

26006831 has 4 divisors (see below), whose sum is σ = 26099664. Its totient is φ = 25914000.

The previous prime is 26006809. The next prime is 26006899. The reversal of 26006831 is 13860062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26006831 is a prime.

It is a super-2 number, since 2×260068312 = 1352710517325122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26006831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26006531) 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, 45995 + ... + 46556.

It is an arithmetic number, because the mean of its divisors is an integer number (6524916).

Almost surely, 226006831 is an apocalyptic number.

26006831 is a deficient number, since it is larger than the sum of its proper divisors (92833).

26006831 is an equidigital number, since it uses as much as digits as its factorization.

26006831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92832.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 26006831 is about 5099.6893042616. The cubic root of 26006831 is about 296.2755491979.

Adding to 26006831 its reverse (13860062), we get a palindrome (39866893).

The spelling of 26006831 in words is "twenty-six million, six thousand, eight hundred thirty-one".

Divisors: 1 281 92551 26006831