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26068866620 = 2251303443331
BaseRepresentation
bin11000010001110100…
…110101011000111100
32111021210011122011112
4120101310311120330
5411342112212440
615550442141152
71612003465406
oct302164653074
974253148145
1026068866620
1110068217375
1250764b17b8
1325c5b06384
1413942ddb76
15a28958965
hex611d3563c

26068866620 has 12 divisors (see below), whose sum is σ = 54744619944. Its totient is φ = 10427546640.

The previous prime is 26068866589. The next prime is 26068866661. The reversal of 26068866620 is 2666886062.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 651721646 + ... + 651721685.

It is an arithmetic number, because the mean of its divisors is an integer number (4562051662).

Almost surely, 226068866620 is an apocalyptic number.

26068866620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26068866620 is an abundant number, since it is smaller than the sum of its proper divisors (28675753324).

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

26068866620 is a wasteful number, since it uses less digits than its factorization.

26068866620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303443340 (or 1303443338 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 50.

The spelling of 26068866620 in words is "twenty-six billion, sixty-eight million, eight hundred sixty-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 1303443331 2606886662 5213773324 6517216655 13034433310 26068866620