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28854082345 = 5111525934381
BaseRepresentation
bin11010110111110101…
…100101101100101001
32202110220001020212111
4122313311211230221
5433043121113340
621131055042321
72041013440024
oct326765455451
982426036774
1028854082345
1111267417150
1257132103a1
13294ab5820a
14157a1961bb
15b3d222aea
hex6b7d65b29

28854082345 has 16 divisors (see below), whose sum is σ = 37776191040. Its totient is φ = 20982801600.

The previous prime is 28854082333. The next prime is 28854082349. The reversal of 28854082345 is 54328045882.

It is a happy number.

It is not a de Polignac number, because 28854082345 - 221 = 28851985193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28854082349) 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, 822055 + ... + 856435.

It is an arithmetic number, because the mean of its divisors is an integer number (2361011940).

Almost surely, 228854082345 is an apocalyptic number.

It is an amenable number.

28854082345 is a deficient number, since it is larger than the sum of its proper divisors (8922108695).

28854082345 is a wasteful number, since it uses less digits than its factorization.

28854082345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49656.

The product of its (nonzero) digits is 2457600, while the sum is 49.

The spelling of 28854082345 in words is "twenty-eight billion, eight hundred fifty-four million, eighty-two thousand, three hundred forty-five".

Divisors: 1 5 11 55 15259 34381 76295 167849 171905 378191 839245 1890955 524619679 2623098395 5770816469 28854082345