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26806907070 = 2355109310093
BaseRepresentation
bin11000111101110100…
…001111000010111110
32120012012220222100000
4120331310033002332
5414400032011240
620152005015130
71636204644006
oct307564170276
976165828300
1026806907070
1110406889059
1252416b44a6
1326b29a43b8
14142433b006
15a6d642430
hex63dd0f0be

26806907070 has 96 divisors (see below), whose sum is σ = 72352661472. Its totient is φ = 7141260672.

The previous prime is 26806907059. The next prime is 26806907087. The reversal of 26806907070 is 7070960862.

It is a happy number.

It is a super-2 number, since 2×268069070702 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2650944 + ... + 2661036.

It is an arithmetic number, because the mean of its divisors is an integer number (753673557).

Almost surely, 226806907070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26806907070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36176330736).

26806907070 is an abundant number, since it is smaller than the sum of its proper divisors (45545754402).

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

26806907070 is a wasteful number, since it uses less digits than its factorization.

26806907070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11208 (or 11196 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 26806907070 in words is "twenty-six billion, eight hundred six million, nine hundred seven thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1093 1215 2186 2430 3279 5465 6558 9837 10093 10930 16395 19674 20186 29511 30279 32790 49185 50465 59022 60558 88533 90837 98370 100930 147555 151395 177066 181674 265599 272511 295110 302790 442665 454185 531198 545022 817533 885330 908370 1327995 1362555 1635066 2452599 2655990 2725110 4087665 4905198 8175330 11031649 12262995 22063298 24525990 33094947 55158245 66189894 99284841 110316490 165474735 198569682 297854523 330949470 496424205 595709046 893563569 992848410 1489272615 1787127138 2680690707 2978545230 4467817845 5361381414 8935635690 13403453535 26806907070