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26730897852 = 22317131033813
BaseRepresentation
bin11000111001010010…
…010010000110111100
32112222220220022021210
4120321102102012330
5414221102212402
620140251524420
71634262611541
oct307122220674
975886808253
1026730897852
111037799321a
125220159710
1326a0010629
1414181d2bc8
15a66b2b06c
hex6394921bc

26730897852 has 24 divisors (see below), whose sum is σ = 66041042256. Its totient is φ = 8386163968.

The previous prime is 26730897833. The next prime is 26730897881. The reversal of 26730897852 is 25879803762.

It is a junction number, because it is equal to n+sod(n) for n = 26730897792 and 26730897801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65516703 + ... + 65517110.

It is an arithmetic number, because the mean of its divisors is an integer number (2751710094).

Almost surely, 226730897852 is an apocalyptic number.

It is an amenable number.

26730897852 is an abundant number, since it is smaller than the sum of its proper divisors (39310144404).

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

26730897852 is a wasteful number, since it uses less digits than its factorization.

26730897852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131033837 (or 131033835 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 26730897852 in words is "twenty-six billion, seven hundred thirty million, eight hundred ninety-seven thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 131033813 262067626 393101439 524135252 786202878 1572405756 2227574821 4455149642 6682724463 8910299284 13365448926 26730897852