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30001411440 = 243257111341627
BaseRepresentation
bin11011111100001110…
…010011010101110000
32212102211221121111200
4123330032103111300
5442420330131230
621441002211200
72111314534560
oct337416232560
985384847450
1030001411440
11117a6018510
1259934b3b00
132aa176a680
1416486d4da0
15ba8d07160
hex6fc393570

30001411440 has 480 divisors, whose sum is σ = 135282341376. Its totient is φ = 5754378240.

The previous prime is 30001411423. The next prime is 30001411459. The reversal of 30001411440 is 4411410003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 699907 + ... + 741533.

Almost surely, 230001411440 is an apocalyptic number.

30001411440 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 30001411440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67641170688).

30001411440 is an abundant number, since it is smaller than the sum of its proper divisors (105280929936).

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

30001411440 is a wasteful number, since it uses less digits than its factorization.

30001411440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41677 (or 41668 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 30001411440 its reverse (4411410003), we get a palindrome (34412821443).

The spelling of 30001411440 in words is "thirty billion, one million, four hundred eleven thousand, four hundred forty".