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2002980681289 = 7417216992
BaseRepresentation
bin11101001001011010111…
…100111011011001001001
321002111001011112011000101
4131021122330323121021
5230304101023300124
64132053455205401
7264465504610000
oct35113274733111
97074034464011
102002980681289
11702506416855
12284236216861
13116b59c43603
146cd326a7c37
153717ea07644
hex1d25af3b649

2002980681289 has 45 divisors (see below), whose sum is σ = 2483670248007. Its totient is φ = 1614898901952.

The previous prime is 2002980681269. The next prime is 2002980681307. The reversal of 2002980681289 is 9821860892002.

The square root of 2002980681289 is 1415267.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1559414025225 + 443566656064 = 1248765^2 + 666008^2 .

It is not a de Polignac number, because 2002980681289 - 225 = 2002947126857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002980681269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1178916562 + ... + 1178918260.

Almost surely, 22002980681289 is an apocalyptic number.

2002980681289 is the 1415267-th square number.

2002980681289 is the 707634-th centered octagonal number.

It is an amenable number.

2002980681289 is a deficient number, since it is larger than the sum of its proper divisors (480689566718).

2002980681289 is an frugal number, since it uses more digits than its factorization.

2002980681289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 2002980681289 in words is "two trillion, two billion, nine hundred eighty million, six hundred eighty-one thousand, two hundred eighty-nine".

Divisors: 1 7 17 49 119 289 343 833 1699 2023 2401 5831 11893 14161 28883 40817 83251 99127 202181 491011 582757 693889 1415267 2886601 3437077 4079299 9906869 20206207 24059539 49072217 69348083 141443449 168416773 343505519 834227689 990104143 1178917411 2404538633 5839593823 6930729001 16831770431 40877156761 117822393017 286140097327 2002980681289