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30305400000 = 2635553953
BaseRepresentation
bin11100001110010101…
…111011010011000000
32220020000221211102020
4130032111323103000
5444031140300000
621531101521440
72121665435601
oct341625732300
986200854366
1030305400000
1111941676627
125a59273280
132b1c733a65
141676c25da8
15bc5852ba0
hex70e57b4c0

30305400000 has 336 divisors, whose sum is σ = 102220519968. Its totient is φ = 7920640000.

The previous prime is 30305399953. The next prime is 30305400029. The reversal of 30305400000 is 450303.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 47 ways as a sum of consecutive naturals, for example, 31799524 + ... + 31800476.

It is an arithmetic number, because the mean of its divisors is an integer number (304227738).

Almost surely, 230305400000 is an apocalyptic number.

30305400000 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 30305400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51110259984).

30305400000 is an abundant number, since it is smaller than the sum of its proper divisors (71915119968).

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

30305400000 is an frugal number, since it uses more digits than its factorization.

30305400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

Adding to 30305400000 its reverse (450303), we get a palindrome (30305850303).

The spelling of 30305400000 in words is "thirty billion, three hundred five million, four hundred thousand".