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20020022000001 = 328705172555317
BaseRepresentation
bin1001000110101010001100…
…10011001011100110000001
32121212220011202101111020100
410203111012103023212001
510111002001113000001
6110325023211033013
74134253544144502
oct443250623134601
977786152344210
1020020022000001
116419497552a81
1222b4020a3b769
13b22b593c220a
144d2d8d42cba9
1524ab779ea586
hex1235464cb981

20020022000001 has 12 divisors (see below), whose sum is σ = 28917854091412. Its totient is φ = 13346660778336.

The previous prime is 20020021999973. The next prime is 20020022000009. The reversal of 20020022000001 is 10000022002002.

It can be written as a sum of positive squares in 2 ways, for example, as 10360358000001 + 9659664000000 = 3218751^2 + 3108000^2 .

It is not a de Polignac number, because 20020022000001 - 211 = 20020021997953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020022000009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6556995 + ... + 9112311.

Almost surely, 220020022000001 is an apocalyptic number.

It is an amenable number.

20020022000001 is a deficient number, since it is larger than the sum of its proper divisors (8897832091411).

20020022000001 is a wasteful number, since it uses less digits than its factorization.

20020022000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3425840 (or 3425837 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20020022000001 its reverse (10000022002002), we get a palindrome (30020044002003).

The spelling of 20020022000001 in words is "twenty trillion, twenty billion, twenty-two million, one", and thus it is an aban number and an uban number.

Divisors: 1 3 9 870517 2555317 2611551 7665951 7834653 22997853 2224446888889 6673340666667 20020022000001