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30505322361 = 396891049483
BaseRepresentation
bin11100011010010000…
…100100011101111001
32220201222010221100010
4130122100210131321
5444433330303421
622003002532133
72126643650613
oct343220443571
986658127303
1030505322361
1111a34506218
125ab4207049
132b51c91907
1416955c7db3
15bd8194076
hex71a424779

30505322361 has 8 divisors (see below), whose sum is σ = 40677999840. Its totient is φ = 20334763232.

The previous prime is 30505322347. The next prime is 30505322443. The reversal of 30505322361 is 16322350503.

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 30505322361 - 25 = 30505322329 is a prime.

It is a super-2 number, since 2×305053223612 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30505322321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495675 + ... + 553808.

It is an arithmetic number, because the mean of its divisors is an integer number (5084749980).

Almost surely, 230505322361 is an apocalyptic number.

It is an amenable number.

30505322361 is a deficient number, since it is larger than the sum of its proper divisors (10172677479).

30505322361 is a wasteful number, since it uses less digits than its factorization.

30505322361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059175.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 30505322361 its reverse (16322350503), we get a palindrome (46827672864).

The spelling of 30505322361 in words is "thirty billion, five hundred five million, three hundred twenty-two thousand, three hundred sixty-one".

Divisors: 1 3 9689 29067 1049483 3148449 10168440787 30505322361