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28510797133 = 713714412753
BaseRepresentation
bin11010100011011000…
…000011110101001101
32201120222002120002101
4122203120003311031
5431342231002013
621033033155101
72026344530350
oct324330036515
981528076071
1028510797133
1111100668965
12563825ba91
1328c49b3480
141546756297
15b1d0138dd
hex6a3603d4d

28510797133 has 16 divisors (see below), whose sum is σ = 35584448256. Its totient is φ = 22240270080.

The previous prime is 28510797113. The next prime is 28510797151. The reversal of 28510797133 is 33179701582.

It is not a de Polignac number, because 28510797133 - 221 = 28508699981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28510797103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2199916 + ... + 2212837.

It is an arithmetic number, because the mean of its divisors is an integer number (2224028016).

Almost surely, 228510797133 is an apocalyptic number.

It is an amenable number.

28510797133 is a deficient number, since it is larger than the sum of its proper divisors (7073651123).

28510797133 is a wasteful number, since it uses less digits than its factorization.

28510797133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412844.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 28510797133 in words is "twenty-eight billion, five hundred ten million, seven hundred ninety-seven thousand, one hundred thirty-three".

Divisors: 1 7 13 71 91 497 923 6461 4412753 30889271 57365789 313305463 401560523 2193138241 4072971019 28510797133