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30340455140 = 22519431856821
BaseRepresentation
bin11100010000011011…
…101001101011100100
32220022110220211000202
4130100123221223210
5444114124031030
621534353130032
72122602420302
oct342033515344
986273824022
1030340455140
111195a43a016
125a68b59918
132b26a88948
14167b74d272
15bc8979745
hex7106e9ae4

30340455140 has 48 divisors (see below), whose sum is σ = 68628141120. Its totient is φ = 11230047360.

The previous prime is 30340455077. The next prime is 30340455143. The reversal of 30340455140 is 4155404303.

It is not an unprimeable number, because it can be changed into a prime (30340455143) 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 15 ways as a sum of consecutive naturals, for example, 912071 + ... + 944750.

It is an arithmetic number, because the mean of its divisors is an integer number (1429752940).

Almost surely, 230340455140 is an apocalyptic number.

It is an amenable number.

30340455140 is an abundant number, since it is smaller than the sum of its proper divisors (38287685980).

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

30340455140 is a wasteful number, since it uses less digits than its factorization.

30340455140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856892 (or 1856890 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 30340455140 its reverse (4155404303), we get a palindrome (34495859443).

The spelling of 30340455140 in words is "thirty billion, three hundred forty million, four hundred fifty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 19 20 38 43 76 86 95 172 190 215 380 430 817 860 1634 3268 4085 8170 16340 1856821 3713642 7427284 9284105 18568210 35279599 37136420 70559198 79843303 141118396 159686606 176397995 319373212 352795990 399216515 705591980 798433030 1517022757 1596866060 3034045514 6068091028 7585113785 15170227570 30340455140