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26845002041 = 1121317066117
BaseRepresentation
bin11001000000000101…
…100011100100111001
32120021212121101210212
4121000011203210321
5414434310031131
620155445320505
71640146516034
oct310005434471
976255541725
1026845002041
1110426338400
125252406135
1326ba851ac0
14142941601b
15a71b69a2b
hex640163939

26845002041 has 12 divisors (see below), whose sum is σ = 31777111716. Its totient is φ = 22527273120.

The previous prime is 26845002031. The next prime is 26845002053. The reversal of 26845002041 is 14020054862.

It can be written as a sum of positive squares in 2 ways, for example, as 12100000000 + 14745002041 = 110000^2 + 121429^2 .

It is a de Polignac number, because none of the positive numbers 2k-26845002041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26845001989 and 26845002007.

It is not an unprimeable number, because it can be changed into a prime (26845002001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8531486 + ... + 8534631.

It is an arithmetic number, because the mean of its divisors is an integer number (2648092643).

Almost surely, 226845002041 is an apocalyptic number.

It is an amenable number.

26845002041 is a deficient number, since it is larger than the sum of its proper divisors (4932109675).

26845002041 is a wasteful number, since it uses less digits than its factorization.

26845002041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17066152 (or 17066141 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 26845002041 in words is "twenty-six billion, eight hundred forty-five million, two thousand, forty-one".

Divisors: 1 11 13 121 143 1573 17066117 187727287 221859521 2065000157 2440454731 26845002041