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1220202020303 = 72244991016453
BaseRepresentation
bin10001110000011001101…
…101010011110111001111
311022122112222101001222122
4101300121231103313033
5124442433204122203
62332315244003155
7154104513020300
oct21603155236717
94278488331878
101220202020303
11430537258a42
121785972304bb
138b0abaa6386
14430b559a7a7
1521b1855e538
hex11c19b53dcf

1220202020303 has 12 divisors (see below), whose sum is σ = 1419478011000. Its totient is φ = 1045843726032.

The previous prime is 1220202020299. The next prime is 1220202020321. The reversal of 1220202020303 is 3030202020221.

It is not a de Polignac number, because 1220202020303 - 22 = 1220202020299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220202023303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 692225 + ... + 1708677.

It is an arithmetic number, because the mean of its divisors is an integer number (118289834250).

Almost surely, 21220202020303 is an apocalyptic number.

1220202020303 is a deficient number, since it is larger than the sum of its proper divisors (199275990697).

1220202020303 is a wasteful number, since it uses less digits than its factorization.

1220202020303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040966 (or 1040959 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 1220202020303 its reverse (3030202020221), we get a palindrome (4250404040524).

The spelling of 1220202020303 in words is "one trillion, two hundred twenty billion, two hundred two million, twenty thousand, three hundred three".

Divisors: 1 7 49 24499 171493 1016453 1200451 7115171 49806197 24902082047 174314574329 1220202020303