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13146768280 = 235328669207
BaseRepresentation
bin11000011111001101…
…11100001110011000
31020221012222000200201
430033212330032120
5203411033041110
610012312511544
7643534454332
oct141746741630
936835860621
1013146768280
11563700a658
12266a9ab5b4
13131690b939
148ca052452
1551e293b3a
hex30f9bc398

13146768280 has 16 divisors (see below), whose sum is σ = 29580228720. Its totient is φ = 5258707296.

The previous prime is 13146768263. The next prime is 13146768289. The reversal of 13146768280 is 8286764131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13146768280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13146768289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164334564 + ... + 164334643.

It is an arithmetic number, because the mean of its divisors is an integer number (1848764295).

Almost surely, 213146768280 is an apocalyptic number.

13146768280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13146768280 is an abundant number, since it is smaller than the sum of its proper divisors (16433460440).

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

13146768280 is a wasteful number, since it uses less digits than its factorization.

13146768280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328669218 (or 328669214 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 13146768280 in words is "thirteen billion, one hundred forty-six million, seven hundred sixty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 328669207 657338414 1314676828 1643346035 2629353656 3286692070 6573384140 13146768280