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30512330530 = 2511947292909
BaseRepresentation
bin11100011010101011…
…010011011100100010
32220202110022222201221
4130122223103130202
5444442124034110
622003413045254
72130060346603
oct343253233442
986673288657
1030512330530
1111a384625a0
125ab662682a
132b53576766
1416964cddaa
15bd8aca7da
hex71aad3722

30512330530 has 32 divisors (see below), whose sum is σ = 59978594880. Its totient is φ = 11083638720.

The previous prime is 30512330509. The next prime is 30512330533. The reversal of 30512330530 is 3503321503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30512330495 and 30512330504.

It is not an unprimeable number, because it can be changed into a prime (30512330533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42285 + ... + 250624.

It is an arithmetic number, because the mean of its divisors is an integer number (1874331090).

Almost surely, 230512330530 is an apocalyptic number.

30512330530 is a deficient number, since it is larger than the sum of its proper divisors (29466264350).

30512330530 is a wasteful number, since it uses less digits than its factorization.

30512330530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293874.

The product of its (nonzero) digits is 4050, while the sum is 25.

The spelling of 30512330530 in words is "thirty billion, five hundred twelve million, three hundred thirty thousand, five hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 947 1894 4735 9470 10417 20834 52085 104170 292909 585818 1464545 2929090 3221999 6443998 16109995 32219990 277384823 554769646 1386924115 2773848230 3051233053 6102466106 15256165265 30512330530