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853428815673 = 3740639467413
BaseRepresentation
bin11000110101101000101…
…00100100011100111001
310000120211220212210110120
430122310110210130321
5102440310234100143
61452020525203453
7115441522145640
oct14326424443471
93016756783416
10853428815673
112a9a34354805
12119497700589
136262a1c10c5
142d440204357
15172edbd2383
hexc6b4524739

853428815673 has 8 divisors (see below), whose sum is σ = 1300462957248. Its totient is φ = 487673608944.

The previous prime is 853428815669. The next prime is 853428815693. The reversal of 853428815673 is 376518824358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 853428815673 - 22 = 853428815669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (853428815633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20319733686 + ... + 20319733727.

It is an arithmetic number, because the mean of its divisors is an integer number (162557869656).

Almost surely, 2853428815673 is an apocalyptic number.

It is an amenable number.

853428815673 is a deficient number, since it is larger than the sum of its proper divisors (447034141575).

853428815673 is a wasteful number, since it uses less digits than its factorization.

853428815673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40639467423.

The product of its digits is 38707200, while the sum is 60.

The spelling of 853428815673 in words is "eight hundred fifty-three billion, four hundred twenty-eight million, eight hundred fifteen thousand, six hundred seventy-three".

Divisors: 1 3 7 21 40639467413 121918402239 284476271891 853428815673