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30405145030 = 2513317544701
BaseRepresentation
bin11100010100010010…
…011011000111000110
32220110222122101212121
4130110102123013012
5444232204120110
621545023440154
72124316316461
oct342422330706
986428571777
1030405145030
1111992a03537
125a8675605a
132b372b84a0
14168618c2d8
15bce4a6cda
hex71449b1c6

30405145030 has 32 divisors (see below), whose sum is σ = 60840476928. Its totient is φ = 10864368000.

The previous prime is 30405144989. The next prime is 30405145063. The reversal of 30405145030 is 3054150403.

It is a super-3 number, since 3×304051450303 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30405144986 and 30405145004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3768321 + ... + 3776380.

It is an arithmetic number, because the mean of its divisors is an integer number (1901264904).

Almost surely, 230405145030 is an apocalyptic number.

30405145030 is an abundant number, since it is smaller than the sum of its proper divisors (30435331898).

30405145030 is a wasteful number, since it uses less digits than its factorization.

30405145030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544752.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 30405145030 its reverse (3054150403), we get a palindrome (33459295433).

The spelling of 30405145030 in words is "thirty billion, four hundred five million, one hundred forty-five thousand, thirty".

Divisors: 1 2 5 10 13 26 31 62 65 130 155 310 403 806 2015 4030 7544701 15089402 37723505 75447010 98081113 196162226 233885731 467771462 490405565 980811130 1169428655 2338857310 3040514503 6081029006 15202572515 30405145030