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89668849305 = 3574120829001
BaseRepresentation
bin101001110000010101…
…1100000111010011001
322120110011202111202210
41103200223200322121
52432120211134210
6105105430345333
76323035433430
oct1234053407231
9276404674683
1089668849305
1135034800732
1215465abb249
1385c0338819
1444a8d3a117
1524ec267e20
hex14e0ae0e99

89668849305 has 32 divisors (see below), whose sum is σ = 167965072128. Its totient is φ = 39991680000.

The previous prime is 89668849301. The next prime is 89668849313. The reversal of 89668849305 is 50394886698.

It is not a de Polignac number, because 89668849305 - 22 = 89668849301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89668849301) 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, 10410196 + ... + 10418805.

It is an arithmetic number, because the mean of its divisors is an integer number (5248908504).

Almost surely, 289668849305 is an apocalyptic number.

It is an amenable number.

89668849305 is a deficient number, since it is larger than the sum of its proper divisors (78296222823).

89668849305 is a wasteful number, since it uses less digits than its factorization.

89668849305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20829057.

The product of its (nonzero) digits is 89579520, while the sum is 66.

The spelling of 89668849305 in words is "eighty-nine billion, six hundred sixty-eight million, eight hundred forty-nine thousand, three hundred five".

Divisors: 1 3 5 7 15 21 35 41 105 123 205 287 615 861 1435 4305 20829001 62487003 104145005 145803007 312435015 437409021 729015035 853989041 2187045105 2561967123 4269945205 5977923287 12809835615 17933769861 29889616435 89668849305