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30314430320 = 245739512761
BaseRepresentation
bin11100001110111000…
…010111111101110000
32220020122221121200112
4130032320113331300
5444040443232240
621532023240452
72122135256216
oct341670277560
986218847615
1030314430320
11119467841a9
125a602a9128
132b21576145
1416780d6cb6
15bc6538665
hex70ee17f70

30314430320 has 40 divisors (see below), whose sum is σ = 70576561680. Its totient is φ = 12109340160.

The previous prime is 30314430281. The next prime is 30314430361. The reversal of 30314430320 is 2303441303.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×303144303202 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197261 + ... + 315500.

It is an arithmetic number, because the mean of its divisors is an integer number (1764414042).

Almost surely, 230314430320 is an apocalyptic number.

It is an amenable number.

30314430320 is an abundant number, since it is smaller than the sum of its proper divisors (40262131360).

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

30314430320 is a wasteful number, since it uses less digits than its factorization.

30314430320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513513 (or 513507 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30314430320 its reverse (2303441303), we get a palindrome (32617871623).

The spelling of 30314430320 in words is "thirty billion, three hundred fourteen million, four hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 739 1478 2956 3695 5912 7390 11824 14780 29560 59120 512761 1025522 2051044 2563805 4102088 5127610 8204176 10255220 20510440 41020880 378930379 757860758 1515721516 1894651895 3031443032 3789303790 6062886064 7578607580 15157215160 30314430320