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20100230322220 = 2256217161655383
BaseRepresentation
bin1001001000111111100110…
…00101101001100000101100
32122011120012121111102121001
410210133303011221200230
510113310232430302340
6110425530205450044
74143123305504506
oct444376305514054
978146177442531
1020100230322220
11644a507006684
122307686570924
13b2a59c7362c9
144d6bdbb14d76
1524ccbe41929a
hex1247f316982c

20100230322220 has 24 divisors (see below), whose sum is σ = 42217273463904. Its totient is φ = 8038798836096.

The previous prime is 20100230322203. The next prime is 20100230322223. The reversal of 20100230322220 is 2222303200102.

It is not an unprimeable number, because it can be changed into a prime (20100230322223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80703352 + ... + 80952031.

It is an arithmetic number, because the mean of its divisors is an integer number (1759053060996).

Almost surely, 220100230322220 is an apocalyptic number.

20100230322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100230322220 is an abundant number, since it is smaller than the sum of its proper divisors (22117043141684).

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

20100230322220 is a wasteful number, since it uses less digits than its factorization.

20100230322220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161661609 (or 161661607 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20100230322220 its reverse (2222303200102), we get a palindrome (22322533522322).

The spelling of 20100230322220 in words is "twenty trillion, one hundred billion, two hundred thirty million, three hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6217 12434 24868 31085 62170 124340 161655383 323310766 646621532 808276915 1616553830 3233107660 1005011516111 2010023032222 4020046064444 5025057580555 10050115161110 20100230322220