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289525079976 = 2331121931716553
BaseRepresentation
bin1000011011010010000…
…10100001111110101000
31000200022111111221211020
410031221002201332220
514220421410024401
6341001143132440
726626462401036
oct4155102417650
91020274457736
10289525079976
111018723a5900
1248141444120
13213c092aa92
1410027cb5556
1577e7c8dd36
hex43690a1fa8

289525079976 has 192 divisors, whose sum is σ = 840161851200. Its totient is φ = 82850042880.

The previous prime is 289525079951. The next prime is 289525079989. The reversal of 289525079976 is 679970525982.

It is a self number, because there is not a number n which added to its sum of digits gives 289525079976.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 17482516 + ... + 17499068.

It is an arithmetic number, because the mean of its divisors is an integer number (4375842975).

Almost surely, 2289525079976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289525079976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420080925600).

289525079976 is an abundant number, since it is smaller than the sum of its proper divisors (550636771224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289525079976 is a wasteful number, since it uses less digits than its factorization.

289525079976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16920 (or 16905 counting only the distinct ones).

The product of its (nonzero) digits is 171460800, while the sum is 69.

The spelling of 289525079976 in words is "two hundred eighty-nine billion, five hundred twenty-five million, seventy-nine thousand, nine hundred seventy-six".