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13531054516 = 2271926639551
BaseRepresentation
bin11001001101000001…
…11000000110110100
31021221000001210022021
430212200320012310
5210202422221031
610114401242524
7656212031350
oct144640700664
937830053267
1013531054516
115813a22591
122757633444
13137840aa45
149250c6460
15542da1511
hex3268381b4

13531054516 has 48 divisors (see below), whose sum is σ = 28500111360. Its totient is φ = 5491173600.

The previous prime is 13531054507. The next prime is 13531054517. The reversal of 13531054516 is 61545013531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531054517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1411941 + ... + 1421491.

It is an arithmetic number, because the mean of its divisors is an integer number (593752320).

Almost surely, 213531054516 is an apocalyptic number.

It is an amenable number.

13531054516 is an abundant number, since it is smaller than the sum of its proper divisors (14969056844).

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

13531054516 is a wasteful number, since it uses less digits than its factorization.

13531054516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12244 (or 12242 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 13531054516 in words is "thirteen billion, five hundred thirty-one million, fifty-four thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 2663 5326 9551 10652 18641 19102 37282 38204 50597 66857 74564 101194 133714 181469 202388 267428 354179 362938 708358 725876 1270283 1416716 2540566 5081132 25434313 50868626 101737252 178040191 356080382 483251947 712160764 966503894 1933007788 3382763629 6765527258 13531054516