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30068351580 = 22351937969593
BaseRepresentation
bin11100000000001101…
…101010001001011100
32212121111220112010010
4130000031222021130
5443034444222310
621451353043220
72113056525411
oct340015521134
985544815103
1030068351580
111182a889643
1259b19b6510
132ab25a7517
14165355c108
15baeb2b320
hex70036a25c

30068351580 has 96 divisors (see below), whose sum is σ = 88857619200. Its totient is φ = 7576063488.

The previous prime is 30068351569. The next prime is 30068351581. The reversal of 30068351580 is 8515386003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30068351581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397264 + ... + 466856.

It is an arithmetic number, because the mean of its divisors is an integer number (925600200).

Almost surely, 230068351580 is an apocalyptic number.

30068351580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30068351580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44428809600).

30068351580 is an abundant number, since it is smaller than the sum of its proper divisors (58789267620).

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

30068351580 is a wasteful number, since it uses less digits than its factorization.

30068351580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70003 (or 70001 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 30068351580 in words is "thirty billion, sixty-eight million, three hundred fifty-one thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 38 57 60 76 95 114 190 228 285 379 380 570 758 1137 1140 1516 1895 2274 3790 4548 5685 7201 7580 11370 14402 21603 22740 28804 36005 43206 69593 72010 86412 108015 139186 144020 208779 216030 278372 347965 417558 432060 695930 835116 1043895 1322267 1391860 2087790 2644534 3966801 4175580 5289068 6611335 7933602 13222670 15867204 19834005 26375747 26445340 39668010 52751494 79127241 79336020 105502988 131878735 158254482 263757470 316508964 395636205 501139193 527514940 791272410 1002278386 1503417579 1582544820 2004556772 2505695965 3006835158 5011391930 6013670316 7517087895 10022783860 15034175790 30068351580