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34638523145 = 517541753257
BaseRepresentation
bin100000010000100111…
…011110101100001001
310022102000111021220122
4200100213132230021
51031414430220040
623525051433025
72334242405642
oct402047365411
9108360437818
1034638523145
11137655a8136
126868455775
13336037c955
1419684d26c9
15d7ae7b1b5
hex8109deb09

34638523145 has 16 divisors (see below), whose sum is σ = 44092710288. Its totient is φ = 26032527360.

The previous prime is 34638523079. The next prime is 34638523219. The reversal of 34638523145 is 54132583643.

It can be written as a sum of positive squares in 8 ways, for example, as 2543084041 + 32095439104 = 50429^2 + 179152^2 .

It is not a de Polignac number, because 34638523145 - 28 = 34638522889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34638523096 and 34638523105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330644 + ... + 422613.

It is an arithmetic number, because the mean of its divisors is an integer number (2755794393).

Almost surely, 234638523145 is an apocalyptic number.

It is an amenable number.

34638523145 is a deficient number, since it is larger than the sum of its proper divisors (9454187143).

34638523145 is a wasteful number, since it uses less digits than its factorization.

34638523145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753820.

The product of its digits is 1036800, while the sum is 44.

The spelling of 34638523145 in words is "thirty-four billion, six hundred thirty-eight million, five hundred twenty-three thousand, one hundred forty-five".

Divisors: 1 5 17 85 541 2705 9197 45985 753257 3766285 12805369 64026845 407512037 2037560185 6927704629 34638523145