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20028307483009 = 721635714391617
BaseRepresentation
bin1001000110111001101000…
…01001110010100110000001
32121220200120011222122012101
410203130310021302212001
510111120433203424014
6110332513305430401
74134666062452600
oct443346411624601
977820504878171
1020028307483009
116421a59489aa1
1222b575379b401
13b23879b1c597
144d35379aba37
1524aeb00d8474
hex123734272981

20028307483009 has 24 divisors (see below), whose sum is σ = 23482227376608. Its totient is φ = 17031916500480.

The previous prime is 20028307483001. The next prime is 20028307483021. The reversal of 20028307483009 is 90038470382002.

It is not a de Polignac number, because 20028307483009 - 23 = 20028307483001 is a prime.

It is a super-2 number, since 2×200283074830092 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20028307483009.

It is not an unprimeable number, because it can be changed into a prime (20028307483001) 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 23 ways as a sum of consecutive naturals, for example, 2364769 + ... + 6756385.

It is an arithmetic number, because the mean of its divisors is an integer number (978426140692).

Almost surely, 220028307483009 is an apocalyptic number.

It is an amenable number.

20028307483009 is a deficient number, since it is larger than the sum of its proper divisors (3453919893599).

20028307483009 is a wasteful number, since it uses less digits than its factorization.

20028307483009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392365 (or 4392358 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 20028307483009 in words is "twenty trillion, twenty-eight billion, three hundred seven million, four hundred eighty-three thousand, nine".

Divisors: 1 7 49 163 571 1141 3997 7987 27979 93073 651511 4391617 4560577 30741319 215189233 715833571 2507613307 5010834997 17553293149 35075844979 122873052043 408740969041 2861186783287 20028307483009