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26108311131 = 3271273263131
BaseRepresentation
bin11000010100001011…
…010011011001011011
32111101112101121212100
4120110023103121123
5411432211424011
615554411414443
71612662661110
oct302413233133
974345347770
1026108311131
1110088508641
125087754423
132601037116
14139964a907
15a2c14ad56
hex6142d365b

26108311131 has 24 divisors (see below), whose sum is σ = 43438813184. Its totient is φ = 14801557680.

The previous prime is 26108311123. The next prime is 26108311133. The reversal of 26108311131 is 13111380162.

26108311131 is a `hidden beast` number, since 2 + 610 + 8 + 3 + 1 + 11 + 31 = 666.

It is not a de Polignac number, because 26108311131 - 23 = 26108311123 is a prime.

It is a super-2 number, since 2×261083111312 (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 = 26108311095 and 26108311104.

It is not an unprimeable number, because it can be changed into a prime (26108311133) 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 23 ways as a sum of consecutive naturals, for example, 1623565 + ... + 1639566.

Almost surely, 226108311131 is an apocalyptic number.

26108311131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26108311131 is a deficient number, since it is larger than the sum of its proper divisors (17330502053).

26108311131 is a wasteful number, since it uses less digits than its factorization.

26108311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263271 (or 3263268 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 26108311131 its reverse (13111380162), we get a palindrome (39219691293).

The spelling of 26108311131 in words is "twenty-six billion, one hundred eight million, three hundred eleven thousand, one hundred thirty-one".

Divisors: 1 3 7 9 21 63 127 381 889 1143 2667 8001 3263131 9789393 22841917 29368179 68525751 205577253 414417637 1243252911 2900923459 3729758733 8702770377 26108311131