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1669289088 = 27341229463
BaseRepresentation
bin110001101111111…
…0101010010000000
311022100001200010210
41203133311102000
511404314222323
6433350354120
756236503015
oct14337652200
94270050123
101669289088
117872a7665
123a705b940
13207ab5b2c
1411b9ad70c
159b839293
hex637f5480

1669289088 has 128 divisors (see below), whose sum is σ = 4571884800. Its totient is φ = 539320320.

The previous prime is 1669289071. The next prime is 1669289093. The reversal of 1669289088 is 8809829661.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3605145 + ... + 3605607.

It is an arithmetic number, because the mean of its divisors is an integer number (35717850).

Almost surely, 21669289088 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 1669289088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2285942400).

1669289088 is an abundant number, since it is smaller than the sum of its proper divisors (2902595712).

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

1669289088 is a wasteful number, since it uses less digits than its factorization.

1669289088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 57.

The square root of 1669289088 is about 40856.9343930746. The cubic root of 1669289088 is about 1186.2526204924.

The spelling of 1669289088 in words is "one billion, six hundred sixty-nine million, two hundred eighty-nine thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 41 48 64 82 96 123 128 164 192 229 246 328 384 458 463 492 656 687 916 926 984 1312 1374 1389 1832 1852 1968 2624 2748 2778 3664 3704 3936 5248 5496 5556 7328 7408 7872 9389 10992 11112 14656 14816 15744 18778 18983 21984 22224 28167 29312 29632 37556 37966 43968 44448 56334 56949 59264 75112 75932 87936 88896 106027 112668 113898 150224 151864 177792 212054 225336 227796 300448 303728 318081 424108 450672 455592 600896 607456 636162 848216 901344 911184 1201792 1214912 1272324 1696432 1802688 1822368 2429824 2544648 3392864 3605376 3644736 4347107 5089296 6785728 7289472 8694214 10178592 13041321 13571456 17388428 20357184 26082642 34776856 40714368 52165284 69553712 104330568 139107424 208661136 278214848 417322272 556429696 834644544 1669289088