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30121330304 = 271318101761
BaseRepresentation
bin11100000011010111…
…110000011010000000
32212202012121010021002
4130003113300122000
5443142030032204
621500524351132
72114302040342
oct340327603200
985665533232
1030121330304
111185778430a
125a076a54a8
132ac0566690
14165a5cd292
15bb45e391e
hex7035f0680

30121330304 has 32 divisors (see below), whose sum is σ = 64623290340. Its totient is φ = 13902151680.

The previous prime is 30121330297. The next prime is 30121330321. The reversal of 30121330304 is 40303312103.

It can be written as a sum of positive squares in 2 ways, for example, as 29807331904 + 313998400 = 172648^2 + 17720^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9049217 + ... + 9052544.

Almost surely, 230121330304 is an apocalyptic number.

It is an amenable number.

30121330304 is an abundant number, since it is smaller than the sum of its proper divisors (34501960036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30121330304 is a wasteful number, since it uses less digits than its factorization.

30121330304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18101788 (or 18101776 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30121330304 its reverse (40303312103), we get a palindrome (70424642407).

The spelling of 30121330304 in words is "thirty billion, one hundred twenty-one million, three hundred thirty thousand, three hundred four".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 416 832 1664 18101761 36203522 72407044 144814088 235322893 289628176 470645786 579256352 941291572 1158512704 1882583144 2317025408 3765166288 7530332576 15060665152 30121330304