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30939017200 = 2452713849973
BaseRepresentation
bin11100110100000110…
…111110111111110000
32221212012012220210221
4130310012332333300
51001330342022300
622114014302424
72143461210220
oct346406767760
987765186727
1030939017200
11121372a5603
125bb54b7a14
132bc0a9cb90
1416d7040080
15c112b131a
hex7341beff0

30939017200 has 120 divisors (see below), whose sum is σ = 91484401568. Its totient is φ = 9791677440.

The previous prime is 30939017147. The next prime is 30939017201. The reversal of 30939017200 is 271093903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30939017201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388587 + ... + 461386.

Almost surely, 230939017200 is an apocalyptic number.

It is an amenable number.

30939017200 is an abundant number, since it is smaller than the sum of its proper divisors (60545384368).

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

30939017200 is a wasteful number, since it uses less digits than its factorization.

30939017200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850011 (or 850000 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 34.

The spelling of 30939017200 in words is "thirty billion, nine hundred thirty-nine million, seventeen thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 25 26 28 35 40 50 52 56 65 70 80 91 100 104 112 130 140 175 182 200 208 260 280 325 350 364 400 455 520 560 650 700 728 910 1040 1300 1400 1456 1820 2275 2600 2800 3640 4550 5200 7280 9100 18200 36400 849973 1699946 3399892 4249865 5949811 6799784 8499730 11049649 11899622 13599568 16999460 21249325 22099298 23799244 29749055 33998920 42498650 44198596 47598488 55248245 59498110 67997840 77347543 84997300 88397192 95196976 110496490 118996220 148745275 154695086 169994600 176794384 220992980 237992440 276241225 297490550 309390172 339989200 386737715 441985960 475984880 552482450 594981100 618780344 773475430 883971920 1104964900 1189962200 1237560688 1546950860 1933688575 2209929800 2379924400 3093901720 3867377150 4419859600 6187803440 7734754300 15469508600 30939017200