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28135703323 = 7213311424809
BaseRepresentation
bin11010001101000001…
…001100001100011011
32200121211021211010001
4122031001030030123
5430110220001243
620531513433431
72014141350400
oct321501141433
980554254101
1028135703323
1110a28964382
12555270b877
132865082480
14150c9d62a7
15aea11ea4d
hex68d04c31b

28135703323 has 24 divisors (see below), whose sum is σ = 36383948160. Its totient is φ = 21543096960.

The previous prime is 28135703287. The next prime is 28135703339. The reversal of 28135703323 is 32330753182.

It is not a de Polignac number, because 28135703323 - 29 = 28135702811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28135703383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 692658 + ... + 732151.

It is an arithmetic number, because the mean of its divisors is an integer number (1515997840).

Almost surely, 228135703323 is an apocalyptic number.

28135703323 is a deficient number, since it is larger than the sum of its proper divisors (8248244837).

28135703323 is a wasteful number, since it uses less digits than its factorization.

28135703323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424867 (or 1424860 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 28135703323 in words is "twenty-eight billion, one hundred thirty-five million, seven hundred three thousand, three hundred twenty-three".

Divisors: 1 7 13 31 49 91 217 403 637 1519 2821 19747 1424809 9973663 18522517 44169079 69815641 129657619 309183553 574198027 907603333 2164284871 4019386189 28135703323