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26420213131 = 132518980683
BaseRepresentation
bin11000100110110001…
…000111010110001011
32112012021021212222021
4120212301013112023
5413102033310011
620045352505311
71623501051304
oct304661072613
975167255867
1026420213131
1110228581194
1251540ab237
132650841410
1413c8c3b7ab
15a4970b471
hex626c4758b

26420213131 has 8 divisors (see below), whose sum is σ = 28454019440. Its totient is φ = 24386618592.

The previous prime is 26420213117. The next prime is 26420213153. The reversal of 26420213131 is 13131202462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26420213131 - 221 = 26418115979 is a prime.

It is a super-2 number, since 2×264202131312 (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 = 26420213096 and 26420213105.

It is not an unprimeable number, because it can be changed into a prime (26420213161) 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 7 ways as a sum of consecutive naturals, for example, 287116 + ... + 367798.

It is an arithmetic number, because the mean of its divisors is an integer number (3556752430).

Almost surely, 226420213131 is an apocalyptic number.

26420213131 is a deficient number, since it is larger than the sum of its proper divisors (2033806309).

26420213131 is a wasteful number, since it uses less digits than its factorization.

26420213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105885.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 26420213131 its reverse (13131202462), we get a palindrome (39551415593).

The spelling of 26420213131 in words is "twenty-six billion, four hundred twenty million, two hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 13 25189 80683 327457 1048879 2032324087 26420213131