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28135753415 = 5711719101641
BaseRepresentation
bin11010001101000001…
…011000011011000111
32200121211101100211022
4122031001120123013
5430110223102130
620531514501355
72014141646420
oct321501303307
980554340738
1028135753415
1110a28998a80
12555273485b
13286509c203
14150ca0a647
15aea12e7e5
hex68d0586c7

28135753415 has 32 divisors (see below), whose sum is σ = 42152970240. Its totient is φ = 17514604800.

The previous prime is 28135753411. The next prime is 28135753439. The reversal of 28135753415 is 51435753182.

It is not a de Polignac number, because 28135753415 - 22 = 28135753411 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28135753411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225995 + ... + 327635.

It is an arithmetic number, because the mean of its divisors is an integer number (1317280320).

Almost surely, 228135753415 is an apocalyptic number.

28135753415 is a deficient number, since it is larger than the sum of its proper divisors (14017216825).

28135753415 is a wasteful number, since it uses less digits than its factorization.

28135753415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102383.

The product of its digits is 504000, while the sum is 44.

The spelling of 28135753415 in words is "twenty-eight billion, one hundred thirty-five million, seven hundred fifty-three thousand, four hundred fifteen".

Divisors: 1 5 7 11 35 55 77 385 719 3595 5033 7909 25165 39545 55363 101641 276815 508205 711487 1118051 3557435 5590255 7826357 39131785 73079879 365399395 511559153 803878669 2557795765 4019393345 5627150683 28135753415