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30505441306 = 2109139933217
BaseRepresentation
bin11100011010010001…
…000001100000011010
32220201222100222111111
4130122101001200122
5444433343110211
622003005250534
72126644654444
oct343221014032
986658328444
1030505441306
1111a3458761a
125ab4263a4a
132b52003ab2
141695619494
15bd81b9421
hex71a44181a

30505441306 has 8 divisors (see below), whose sum is σ = 46177961940. Its totient is φ = 15112787328.

The previous prime is 30505441217. The next prime is 30505441409. The reversal of 30505441306 is 60314450503.

It can be written as a sum of positive squares in 2 ways, for example, as 29348829225 + 1156612081 = 171315^2 + 34009^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69966391 + ... + 69966826.

Almost surely, 230505441306 is an apocalyptic number.

30505441306 is a deficient number, since it is larger than the sum of its proper divisors (15672520634).

30505441306 is a wasteful number, since it uses less digits than its factorization.

30505441306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139933328.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 30505441306 its reverse (60314450503), we get a palindrome (90819891809).

The spelling of 30505441306 in words is "thirty billion, five hundred five million, four hundred forty-one thousand, three hundred six".

Divisors: 1 2 109 218 139933217 279866434 15252720653 30505441306