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30985999200 = 253652136167
BaseRepresentation
bin11100110110111010…
…001101001101100000
32221222110121212000000
4130312322031031200
51001424403433300
622122413300000
72144601435042
oct346672151540
987873555000
1030985999200
1112160874902
126009194600
132bca73c690
1416dd38da92
15c15491c00
hex736e8d360

30985999200 has 1008 divisors, whose sum is σ = 125994342096. Its totient is φ = 7390310400.

The previous prime is 30985999117. The next prime is 30985999207. The reversal of 30985999200 is 299958903.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30985999207) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 462477567 + ... + 462477633.

It is an arithmetic number, because the mean of its divisors is an integer number (124994387).

Almost surely, 230985999200 is an apocalyptic number.

30985999200 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 30985999200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62997171048).

30985999200 is an abundant number, since it is smaller than the sum of its proper divisors (95008342896).

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

30985999200 is a wasteful number, since it uses less digits than its factorization.

30985999200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 30985999200 in words is "thirty billion, nine hundred eighty-five million, nine hundred ninety-nine thousand, two hundred".