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26814154668 = 2237319216127
BaseRepresentation
bin11000111110001111…
…111000011110101100
32120012201120012011120
4120332033320132230
5414403410422133
620152424220540
71636323361020
oct307617703654
976181505146
1026814154668
111040a989304
12524400a750
1326b4341212
1414252a6380
15a6e0c4ab3
hex63e3f87ac

26814154668 has 24 divisors (see below), whose sum is σ = 71504412672. Its totient is φ = 7661187024.

The previous prime is 26814154657. The next prime is 26814154669. The reversal of 26814154668 is 86645141862.

It is a self number, because there is not a number n which added to its sum of digits gives 26814154668.

It is not an unprimeable number, because it can be changed into a prime (26814154669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159607980 + ... + 159608147.

It is an arithmetic number, because the mean of its divisors is an integer number (2979350528).

Almost surely, 226814154668 is an apocalyptic number.

26814154668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26814154668 is an abundant number, since it is smaller than the sum of its proper divisors (44690258004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26814154668 is a wasteful number, since it uses less digits than its factorization.

26814154668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319216141 (or 319216139 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The spelling of 26814154668 in words is "twenty-six billion, eight hundred fourteen million, one hundred fifty-four thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 319216127 638432254 957648381 1276864508 1915296762 2234512889 3830593524 4469025778 6703538667 8938051556 13407077334 26814154668