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30505505505 = 352577913231
BaseRepresentation
bin11100011010010001…
…010001001011100001
32220201222111020120020
4130122101101023201
5444433402134010
622003010504053
72126645342556
oct343221211341
986658436506
1030505505505
1111a34620882
125ab4295029
132b52027097
141695634a2d
15bd81cd470
hex71a4512e1

30505505505 has 16 divisors (see below), whose sum is σ = 48998732544. Its totient is φ = 16206295040.

The previous prime is 30505505489. The next prime is 30505505519. The reversal of 30505505505 is 50550550503.

It is not a de Polignac number, because 30505505505 - 24 = 30505505489 is a prime.

It is a super-2 number, since 2×305055055052 (a number of 22 digits) contains 22 as substring.

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, 3952761 + ... + 3960470.

It is an arithmetic number, because the mean of its divisors is an integer number (3062420784).

Almost surely, 230505505505 is an apocalyptic number.

It is an amenable number.

30505505505 is a deficient number, since it is larger than the sum of its proper divisors (18493227039).

30505505505 is a wasteful number, since it uses less digits than its factorization.

30505505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913496.

The product of its (nonzero) digits is 46875, while the sum is 33.

The spelling of 30505505505 in words is "thirty billion, five hundred five million, five hundred five thousand, five hundred five".

Divisors: 1 3 5 15 257 771 1285 3855 7913231 23739693 39566155 118698465 2033700367 6101101101 10168501835 30505505505