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20020012031322 = 234123580321181
BaseRepresentation
bin1001000110101010001011…
…01101001001110101011010
32121212220011001122000210000
410203111011231021311122
510111001441040000242
6110325022213233430
74134253363335342
oct443250555116532
977786131560700
1020020012031322
1164194919643a6
1222b4019632876
13b22b573119a4
144d2d8bd95d22
1524ab76bcba4c
hex123545b49d5a

20020012031322 has 20 divisors (see below), whose sum is σ = 44859656589066. Its totient is φ = 6673337343720.

The previous prime is 20020012031309. The next prime is 20020012031423. The reversal of 20020012031322 is 22313021002002.

20020012031322 is a `hidden beast` number, since 20 + 0 + 200 + 120 + 3 + 1 + 322 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19670280544161 + 349731487161 = 4435119^2 + 591381^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20020012031295 and 20020012031304.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61790160429 + ... + 61790160752.

Almost surely, 220020012031322 is an apocalyptic number.

20020012031322 is an abundant number, since it is smaller than the sum of its proper divisors (24839644557744).

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

20020012031322 is a wasteful number, since it uses less digits than its factorization.

20020012031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123580321195 (or 123580321186 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20020012031322 its reverse (22313021002002), we get a palindrome (42333033033324).

The spelling of 20020012031322 in words is "twenty trillion, twenty billion, twelve million, thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 123580321181 247160642362 370740963543 741481927086 1112222890629 2224445781258 3336668671887 6673337343774 10010006015661 20020012031322