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30204978507 = 32112997108461
BaseRepresentation
bin11100001000010110…
…110110010101001011
32212222000222220000200
4130020112312111023
5443324433303012
621513113303243
72116336036554
oct341026662513
985860886020
1030204978507
111189aa17460
125a2b704b23
132b049a3462
14166776532b
15bbbb183dc
hex7085b654b

30204978507 has 48 divisors (see below), whose sum is σ = 49745011680. Its totient is φ = 17492428800.

The previous prime is 30204978491. The next prime is 30204978541. The reversal of 30204978507 is 70587940203.

30204978507 is a `hidden beast` number, since 30 + 2 + 0 + 49 + 78 + 507 = 666.

It is not a de Polignac number, because 30204978507 - 24 = 30204978491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30204978407) 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 47 ways as a sum of consecutive naturals, for example, 224257 + ... + 332717.

It is an arithmetic number, because the mean of its divisors is an integer number (1036354410).

Almost surely, 230204978507 is an apocalyptic number.

30204978507 is a deficient number, since it is larger than the sum of its proper divisors (19540033173).

30204978507 is a wasteful number, since it uses less digits than its factorization.

30204978507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108604 (or 108601 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 30204978507 in words is "thirty billion, two hundred four million, nine hundred seventy-eight thousand, five hundred seven".

Divisors: 1 3 9 11 29 33 87 97 99 261 291 319 873 957 1067 2813 2871 3201 8439 9603 25317 30943 92829 108461 278487 325383 976149 1193071 3145369 3579213 9436107 10520717 10737639 28308321 31562151 34599059 94686453 103797177 115727887 305100793 311391531 347183661 915302379 1041550983 2745907137 3356108723 10068326169 30204978507