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70434043408 = 2417258948689
BaseRepresentation
bin100000110011000110…
…0100011011000010000
320201210200002010111101
41001212030203120100
52123222103342113
652205033554144
75042264330221
oct1014614433020
9221720063441
1070434043408
11279641aa333
1211798275954
136846348481
1435a251d248
151c7379b2dd
hex1066323610

70434043408 has 20 divisors (see below), whose sum is σ = 144493369020. Its totient is φ = 33145432064.

The previous prime is 70434043403. The next prime is 70434043487. The reversal of 70434043408 is 80434043407.

It can be written as a sum of positive squares in 2 ways, for example, as 50118672384 + 20315371024 = 223872^2 + 142532^2 .

It is not an unprimeable number, because it can be changed into a prime (70434043403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129474073 + ... + 129474616.

It is an arithmetic number, because the mean of its divisors is an integer number (7224668451).

Almost surely, 270434043408 is an apocalyptic number.

It is an amenable number.

70434043408 is an abundant number, since it is smaller than the sum of its proper divisors (74059325612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70434043408 is a wasteful number, since it uses less digits than its factorization.

70434043408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258948714 (or 258948708 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 37.

Subtracting 70434043408 from its reverse (80434043407), we obtain a palindrome (9999999999).

The spelling of 70434043408 in words is "seventy billion, four hundred thirty-four million, forty-three thousand, four hundred eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 258948689 517897378 1035794756 2071589512 4143179024 4402127713 8804255426 17608510852 35217021704 70434043408