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213232044320 = 2551332700277
BaseRepresentation
bin1100011010010110011…
…1101100100100100000
3202101101111201011220222
43012211213230210200
511443144400404240
6241542450422212
721256042320461
oct3064547544440
9671344634828
10213232044320
1182481a25a19
12353aab91968
13171527b77b9
14a46b5b0d68
15582ee5eeb5
hex31a59ec920

213232044320 has 24 divisors (see below), whose sum is σ = 503760705084. Its totient is φ = 85292817664.

The previous prime is 213232044301. The next prime is 213232044331. The reversal of 213232044320 is 23440232312.

It can be written as a sum of positive squares in 2 ways, for example, as 189270242704 + 23961801616 = 435052^2 + 154796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 213232044320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666349979 + ... + 666350298.

Almost surely, 2213232044320 is an apocalyptic number.

213232044320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213232044320 is an abundant number, since it is smaller than the sum of its proper divisors (290528660764).

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

213232044320 is a wasteful number, since it uses less digits than its factorization.

213232044320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332700292 (or 1332700284 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 213232044320 its reverse (23440232312), we get a palindrome (236672276632).

The spelling of 213232044320 in words is "two hundred thirteen billion, two hundred thirty-two million, forty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1332700277 2665400554 5330801108 6663501385 10661602216 13327002770 21323204432 26654005540 42646408864 53308011080 106616022160 213232044320