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8240706020 = 225412035301
BaseRepresentation
bin1111010110010111…
…10011000111100100
3210021022100020111002
413223023303013210
5113334110043040
63441414532432
7411132562661
oct75313630744
923238306432
108240706020
113549733448
12171b967118
13a14380411
14582644a68
153336e5a15
hex1eb2f31e4

8240706020 has 12 divisors (see below), whose sum is σ = 17305482684. Its totient is φ = 3296282400.

The previous prime is 8240705969. The next prime is 8240706053. The reversal of 8240706020 is 206070428.

It can be written as a sum of positive squares in 2 ways, for example, as 3967992064 + 4272713956 = 62992^2 + 65366^2 .

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 3 ways as a sum of consecutive naturals, for example, 206017631 + ... + 206017670.

It is an arithmetic number, because the mean of its divisors is an integer number (1442123557).

Almost surely, 28240706020 is an apocalyptic number.

It is an amenable number.

8240706020 is an abundant number, since it is smaller than the sum of its proper divisors (9064776664).

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

8240706020 is a wasteful number, since it uses less digits than its factorization.

8240706020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412035310 (or 412035308 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 8240706020 is about 90778.3345297764. The cubic root of 8240706020 is about 2019.8609534064.

Adding to 8240706020 its reverse (206070428), we get a palindrome (8446776448).

The spelling of 8240706020 in words is "eight billion, two hundred forty million, seven hundred six thousand, twenty".

Divisors: 1 2 4 5 10 20 412035301 824070602 1648141204 2060176505 4120353010 8240706020