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26271032231 = 80713325487
BaseRepresentation
bin11000011101111000…
…000010001110100111
32111210212120201020202
4120131320002032213
5412300341012411
620022503221115
71620010042463
oct303570021647
974725521222
1026271032231
1110161349394
12511214779b
13262896b2b2
1413b30c74a3
15a3b58e83b
hex61de023a7

26271032231 has 4 divisors (see below), whose sum is σ = 26271438432. Its totient is φ = 26270626032.

The previous prime is 26271032219. The next prime is 26271032267. The reversal of 26271032231 is 13223017262.

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

It is a cyclic number.

It is not a de Polignac number, because 26271032231 - 226 = 26203923367 is a prime.

It is a super-2 number, since 2×262710322312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26271032194 and 26271032203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26271032831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82031 + ... + 243456.

It is an arithmetic number, because the mean of its divisors is an integer number (6567859608).

Almost surely, 226271032231 is an apocalyptic number.

26271032231 is a deficient number, since it is larger than the sum of its proper divisors (406201).

26271032231 is an equidigital number, since it uses as much as digits as its factorization.

26271032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406200.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 26271032231 its reverse (13223017262), we get a palindrome (39494049493).

The spelling of 26271032231 in words is "twenty-six billion, two hundred seventy-one million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 80713 325487 26271032231