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26755205856 = 2531973141257
BaseRepresentation
bin11000111010101111…
…000000101011100000
32120001121122021121020
4120322233000223200
5414243313041411
620142520525440
71635006332421
oct307257005340
976047567536
1026755205856
111038a686185
125228320880
1326a5071872
14141b51d648
15a68d2d606
hex63abc0ae0

26755205856 has 48 divisors (see below), whose sum is σ = 70268509584. Its totient is φ = 8913818624.

The previous prime is 26755205833. The next prime is 26755205857. The reversal of 26755205856 is 65850255762.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 26755205799 and 26755205808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26755205857) 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, 118780 + ... + 260036.

It is an arithmetic number, because the mean of its divisors is an integer number (1463927283).

Almost surely, 226755205856 is an apocalyptic number.

It is an amenable number.

26755205856 is an abundant number, since it is smaller than the sum of its proper divisors (43513303728).

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

26755205856 is a wasteful number, since it uses less digits than its factorization.

26755205856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143243 (or 143235 counting only the distinct ones).

The product of its (nonzero) digits is 5040000, while the sum is 51.

The spelling of 26755205856 in words is "twenty-six billion, seven hundred fifty-five million, two hundred five thousand, eight hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1973 3946 5919 7892 11838 15784 23676 31568 47352 63136 94704 141257 189408 282514 423771 565028 847542 1130056 1695084 2260112 3390168 4520224 6780336 13560672 278700061 557400122 836100183 1114800244 1672200366 2229600488 3344400732 4459200976 6688801464 8918401952 13377602928 26755205856