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30000122200 = 23521935921991
BaseRepresentation
bin11011111100001001…
…011000100101011000
32212102202112010000001
4123330021120211120
5442420012402300
621440514422344
72111300555056
oct337411304530
985382463001
1030000122200
11117a5317924
125992b919b4
132aa14088c9
14164847b1d6
15ba8b5016a
hex6fc258958

30000122200 has 96 divisors (see below), whose sum is σ = 73629216000. Its totient is φ = 11336284800.

The previous prime is 30000122183. The next prime is 30000122221. The reversal of 30000122200 is 222100003.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1353205 + ... + 1375195.

It is an arithmetic number, because the mean of its divisors is an integer number (766971000).

Almost surely, 230000122200 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 30000122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36814608000).

30000122200 is an abundant number, since it is smaller than the sum of its proper divisors (43629093800).

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

30000122200 is a wasteful number, since it uses less digits than its factorization.

30000122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22385 (or 22376 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 30000122200 its reverse (222100003), we get a palindrome (30222222203).

The spelling of 30000122200 in words is "thirty billion, one hundred twenty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 19 20 25 38 40 50 76 95 100 152 190 200 359 380 475 718 760 950 1436 1795 1900 2872 3590 3800 6821 7180 8975 13642 14360 17950 21991 27284 34105 35900 43982 54568 68210 71800 87964 109955 136420 170525 175928 219910 272840 341050 417829 439820 549775 682100 835658 879640 1099550 1364200 1671316 2089145 2199100 3342632 4178290 4398200 7894769 8356580 10445725 15789538 16713160 20891450 31579076 39473845 41782900 63158152 78947690 83565800 150000611 157895380 197369225 300001222 315790760 394738450 600002444 750003055 789476900 1200004888 1500006110 1578953800 3000012220 3750015275 6000024440 7500030550 15000061100 30000122200