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30012302320 = 24571113894211
BaseRepresentation
bin11011111100110111…
…110110001111110000
32212110121102220222121
4123330313312033300
5442431122133240
621442031444024
72111506234450
oct337467661760
985417386877
1030012302320
1111801186a40
125997086614
132aa3ab1890
141649d2bd60
15ba9c5904a
hex6fcdf63f0

30012302320 has 320 divisors, whose sum is σ = 94763934720. Its totient is φ = 8535859200.

The previous prime is 30012302311. The next prime is 30012302323. The reversal of 30012302320 is 2320321003.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 30012302294 and 30012302303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012302323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7125015 + ... + 7129225.

It is an arithmetic number, because the mean of its divisors is an integer number (296137296).

Almost surely, 230012302320 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 30012302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47381967360).

30012302320 is an abundant number, since it is smaller than the sum of its proper divisors (64751632400).

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

30012302320 is a wasteful number, since it uses less digits than its factorization.

30012302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344 (or 4338 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30012302320 its reverse (2320321003), we get a palindrome (32332623323).

The spelling of 30012302320 in words is "thirty billion, twelve million, three hundred two thousand, three hundred twenty".