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689639875883 = 71012269429901
BaseRepresentation
bin10100000100100011011…
…11010110010100101011
32102221002012002120012022
422002101233112110223
542244340302012013
61244452143535055
7100552630140020
oct12022157262453
92387065076168
10689639875883
11246524805052
12b17a6bba48b
1350056c9039a
14255433db547
1512e147b1008
hexa091bd652b

689639875883 has 16 divisors (see below), whose sum is σ = 796316072640. Its totient is φ = 585007920000.

The previous prime is 689639875877. The next prime is 689639875921. The reversal of 689639875883 is 388578936986.

It is not a de Polignac number, because 689639875883 - 28 = 689639875627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 689639875798 and 689639875807.

It is not an unprimeable number, because it can be changed into a prime (689639875853) 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 15 ways as a sum of consecutive naturals, for example, 1389233 + ... + 1819133.

It is an arithmetic number, because the mean of its divisors is an integer number (49769754540).

Almost surely, 2689639875883 is an apocalyptic number.

689639875883 is a deficient number, since it is larger than the sum of its proper divisors (106676196757).

689639875883 is a wasteful number, since it uses less digits than its factorization.

689639875883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432278.

The product of its digits is 3762339840, while the sum is 80.

The spelling of 689639875883 in words is "six hundred eighty-nine billion, six hundred thirty-nine million, eight hundred seventy-five thousand, eight hundred eighty-three".

Divisors: 1 7 101 707 2269 15883 229169 429901 1604183 3009307 43420001 303940007 975445369 6828117583 98519982269 689639875883