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20030031424445 = 5717329171134047
BaseRepresentation
bin1001000110111100110101…
…11010000110101110111101
32121220212000022212221021012
410203132122322012232331
510111133001021040240
6110333400331445005
74135056564641120
oct443363272065675
977825008787235
1020030031424445
116422763614789
1222b5b54bb6765
13b23a9302c283
144d365c9263b7
1524b06161ab65
hex12379ae86bbd

20030031424445 has 32 divisors (see below), whose sum is σ = 27638038038528. Its totient is φ = 13650792945408.

The previous prime is 20030031424439. The next prime is 20030031424463. The reversal of 20030031424445 is 54442413003002.

It is a cyclic number.

It is not a de Polignac number, because 20030031424445 - 212 = 20030031420349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17095412 + ... + 18229458.

It is an arithmetic number, because the mean of its divisors is an integer number (863688688704).

Almost surely, 220030031424445 is an apocalyptic number.

It is an amenable number.

20030031424445 is a deficient number, since it is larger than the sum of its proper divisors (7608006614083).

20030031424445 is a wasteful number, since it uses less digits than its factorization.

20030031424445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137149.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 20030031424445 its reverse (54442413003002), we get a palindrome (74472444427447).

The spelling of 20030031424445 in words is "twenty trillion, thirty billion, thirty-one million, four hundred twenty-four thousand, four hundred forty-five".

Divisors: 1 5 7 35 173 865 1211 2917 6055 14585 20419 102095 504641 1134047 2523205 3532487 5670235 7938329 17662435 39691645 196190131 980950655 1373330917 3308015099 6866654585 16540075495 23156105693 115780528465 572286612127 2861433060635 4006006284889 20030031424445