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30030320012 = 22711461211499
BaseRepresentation
bin11011111101111100…
…100101000110001100
32212111212100022121112
4123331330211012030
5443000230220022
621443513551152
72112115336250
oct337574450614
985455308545
1030030320012
11118103729a0
1259a11154b8
132aa774c934
14164c49c260
15bab6178e2
hex6fdf2518c

30030320012 has 48 divisors (see below), whose sum is σ = 65663136000. Its totient is φ = 11674689600.

The previous prime is 30030319997. The next prime is 30030320039. The reversal of 30030320012 is 21002303003.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 36239 + ... + 247737.

It is an arithmetic number, because the mean of its divisors is an integer number (1367982000).

Almost surely, 230030320012 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 30030320012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32831568000).

30030320012 is an abundant number, since it is smaller than the sum of its proper divisors (35632815988).

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

30030320012 is a wasteful number, since it uses less digits than its factorization.

30030320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211982 (or 211980 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 30030320012 its reverse (21002303003), we get a palindrome (51032623015).

The spelling of 30030320012 in words is "thirty billion, thirty million, three hundred twenty thousand, twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 461 922 1844 3227 5071 6454 10142 12908 20284 35497 70994 141988 211499 422998 845996 1480493 2326489 2960986 4652978 5921972 9305956 16285423 32570846 65141692 97501039 195002078 390004156 682507273 1072511429 1365014546 2145022858 2730029092 4290045716 7507580003 15015160006 30030320012