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30430708561 = 1110037275623
BaseRepresentation
bin11100010101110011…
…111100001101010001
32220112202202011110001
4130111303330031101
5444310230133221
621551335410001
72125046516641
oct342563741521
986482664401
1030430708561
11119a6383820
125a93223901
132b3c699036
141689724521
15bd1856391
hex715cfc351

30430708561 has 8 divisors (see below), whose sum is σ = 33200564544. Its totient is φ = 27661423920.

The previous prime is 30430708547. The next prime is 30430708573. The reversal of 30430708561 is 16580703403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30430708561 - 27 = 30430708433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30430708561.

It is not an unprimeable number, because it can be changed into a prime (30430708261) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27405 + ... + 248218.

It is an arithmetic number, because the mean of its divisors is an integer number (4150070568).

Almost surely, 230430708561 is an apocalyptic number.

It is an amenable number.

30430708561 is a deficient number, since it is larger than the sum of its proper divisors (2769855983).

30430708561 is a wasteful number, since it uses less digits than its factorization.

30430708561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285671.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 30430708561 in words is "thirty billion, four hundred thirty million, seven hundred eight thousand, five hundred sixty-one".

Divisors: 1 11 10037 110407 275623 3031853 2766428051 30430708561