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26808438326 = 213404219163
BaseRepresentation
bin11000111101111010…
…000100111000110110
32120012022210202211012
4120331322010320312
5414400430011301
620152101512222
71636223652215
oct307572047066
976168722735
1026808438326
111040773455a
125242112672
1326b30bc377
14142461907c
15a6d845ebb
hex63de84e36

26808438326 has 4 divisors (see below), whose sum is σ = 40212657492. Its totient is φ = 13404219162.

The previous prime is 26808438317. The next prime is 26808438329. The reversal of 26808438326 is 62383480862.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26808438329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702109580 + ... + 6702109583.

It is an arithmetic number, because the mean of its divisors is an integer number (10053164373).

Almost surely, 226808438326 is an apocalyptic number.

26808438326 is a deficient number, since it is larger than the sum of its proper divisors (13404219166).

26808438326 is a wasteful number, since it uses less digits than its factorization.

26808438326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13404219165.

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 26808438326 in words is "twenty-six billion, eight hundred eight million, four hundred thirty-eight thousand, three hundred twenty-six".

Divisors: 1 2 13404219163 26808438326