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28383155445 = 3510717684209
BaseRepresentation
bin11010011011110001…
…001001010011110101
32201021001220200121110
4122123301021103311
5431112041433240
621012233305233
72023234561221
oct323361112365
981231820543
1028383155445
1111045607867
125601565219
1328a4412248
14153380b781
15b11bedc80
hex69bc494f5

28383155445 has 16 divisors (see below), whose sum is σ = 45837472320. Its totient is φ = 14996208384.

The previous prime is 28383155417. The next prime is 28383155473. The reversal of 28383155445 is 54455138382.

It is an interprime number because it is at equal distance from previous prime (28383155417) and next prime (28383155473).

It is not a de Polignac number, because 28383155445 - 28 = 28383155189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28383155394 and 28383155403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8840500 + ... + 8843709.

It is an arithmetic number, because the mean of its divisors is an integer number (2864842020).

Almost surely, 228383155445 is an apocalyptic number.

It is an amenable number.

28383155445 is a deficient number, since it is larger than the sum of its proper divisors (17454316875).

28383155445 is a wasteful number, since it uses less digits than its factorization.

28383155445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17684324.

The product of its digits is 2304000, while the sum is 48.

The spelling of 28383155445 in words is "twenty-eight billion, three hundred eighty-three million, one hundred fifty-five thousand, four hundred forty-five".

Divisors: 1 3 5 15 107 321 535 1605 17684209 53052627 88421045 265263135 1892210363 5676631089 9461051815 28383155445