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22031313302220 = 22351937975384707
BaseRepresentation
bin1010000001001100100001…
…00110100111001011001100
32220000011200002210220221220
411000212100212213023030
510341430112201132340
6114505013503523340
74432465324141155
oct500462046471314
986004602726856
1022031313302220
117024478005292
1225799962b9550
13c3a70c024ab1
1456246d73a92c
15283141e08ed0
hex1409909a72cc

22031313302220 has 192 divisors, whose sum is σ = 67376912709120. Its totient is φ = 5359548653568.

The previous prime is 22031313302177. The next prime is 22031313302231. The reversal of 22031313302220 is 2220331313022.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1399107 + ... + 6783813.

It is an arithmetic number, because the mean of its divisors is an integer number (350921420360).

Almost surely, 222031313302220 is an apocalyptic number.

22031313302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22031313302220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33688456354560).

22031313302220 is an abundant number, since it is smaller than the sum of its proper divisors (45345599406900).

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

22031313302220 is a wasteful number, since it uses less digits than its factorization.

22031313302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384872 (or 5384870 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 22031313302220 its reverse (2220331313022), we get a palindrome (24251644615242).

The spelling of 22031313302220 in words is "twenty-two trillion, thirty-one billion, three hundred thirteen million, three hundred two thousand, two hundred twenty".