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26006600020 = 2252365386579
BaseRepresentation
bin11000001110000111…
…010011100101010100
32111010110000011110011
4120032013103211110
5411230142200040
615540335410004
71610316311212
oct301607234524
974113004404
1026006600020
1110036058575
125059683904
1325b5c4482b
141389d31cb2
15a232593ea
hex60e1d3954

26006600020 has 48 divisors (see below), whose sum is σ = 57076306560. Its totient is φ = 9934998656.

The previous prime is 26006599981. The next prime is 26006600083. The reversal of 26006600020 is 2000660062.

It is a junction number, because it is equal to n+sod(n) for n = 26006599964 and 26006600000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257091 + ... + 343669.

It is an arithmetic number, because the mean of its divisors is an integer number (1189089720).

Almost surely, 226006600020 is an apocalyptic number.

26006600020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26006600020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28538153280).

26006600020 is an abundant number, since it is smaller than the sum of its proper divisors (31069706540).

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

26006600020 is a wasteful number, since it uses less digits than its factorization.

26006600020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87264 (or 87262 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The spelling of 26006600020 in words is "twenty-six billion, six million, six hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 653 1306 2612 3265 6530 13060 15019 30038 60076 75095 86579 150190 173158 300380 346316 432895 865790 1731580 1991317 3982634 7965268 9956585 19913170 39826340 56536087 113072174 226144348 282680435 565360870 1130721740 1300330001 2600660002 5201320004 6501650005 13003300010 26006600020