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989468468289 = 33730517171553
BaseRepresentation
bin11100110011000001110…
…10101010010001000001
310111120222202111011221000
432121200322222101001
5112202412411441124
62034315555122213
7131325644131650
oct16314072522101
93446882434830
10989468468289
113516a4178284
1213b922ba3369
13723ca436082
1435c67881197
151ab11db26c9
hexe660eaa441

989468468289 has 32 divisors (see below), whose sum is σ = 1675355191040. Its totient is φ = 565388729856.

The previous prime is 989468468123. The next prime is 989468468327. The reversal of 989468468289 is 982864864989.

989468468289 is a `hidden beast` number, since 9 + 8 + 94 + 68 + 468 + 2 + 8 + 9 = 666.

It is not a de Polignac number, because 989468468289 - 28 = 989468468033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989468468689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5681937 + ... + 5853489.

It is an arithmetic number, because the mean of its divisors is an integer number (52354849720).

Almost surely, 2989468468289 is an apocalyptic number.

It is an amenable number.

989468468289 is a deficient number, since it is larger than the sum of its proper divisors (685886722751).

989468468289 is a wasteful number, since it uses less digits than its factorization.

989468468289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202086 (or 202080 counting only the distinct ones).

The product of its digits is 3439853568, while the sum is 81.

The spelling of 989468468289 in words is "nine hundred eighty-nine billion, four hundred sixty-eight million, four hundred sixty-eight thousand, two hundred eighty-nine".

Divisors: 1 3 7 9 21 27 63 189 30517 91551 171553 213619 274653 514659 640857 823959 1200871 1543977 1922571 3602613 4631931 5767713 10807839 32423517 5235282901 15705848703 36646980307 47117546109 109940940921 141352638327 329822822763 989468468289