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30002800530 = 2351000093351
BaseRepresentation
bin11011111100010011…
…100110011110010010
32212102221120011222110
4123330103212132102
5442421204104110
621441052050150
72111332411443
oct337423463622
985387504873
1030002800530
11117a688711a
125993a63956
132aa1b35a11
1416489772ca
15ba8ecda20
hex6fc4e6792

30002800530 has 16 divisors (see below), whose sum is σ = 72006721344. Its totient is φ = 8000746800.

The previous prime is 30002800519. The next prime is 30002800561. The reversal of 30002800530 is 3500820003.

It is a junction number, because it is equal to n+sod(n) for n = 30002800497 and 30002800506.

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, 500046646 + ... + 500046705.

It is an arithmetic number, because the mean of its divisors is an integer number (4500420084).

Almost surely, 230002800530 is an apocalyptic number.

30002800530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30002800530 is an abundant number, since it is smaller than the sum of its proper divisors (42003920814).

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

30002800530 is a wasteful number, since it uses less digits than its factorization.

30002800530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000093361.

The product of its (nonzero) digits is 720, while the sum is 21.

The spelling of 30002800530 in words is "thirty billion, two million, eight hundred thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1000093351 2000186702 3000280053 5000466755 6000560106 10000933510 15001400265 30002800530