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30000002908 = 2241182926847
BaseRepresentation
bin11011111100001000…
…111011011101011100
32212102202022001100211
4123330020323131130
5442420000043113
621440512102204
72111266550221
oct337410733534
985382261324
1030000002908
11117a5246237
125992b34964
132aa1396515
141648449948
15ba8b29b3d
hex6fc23b75c

30000002908 has 12 divisors (see below), whose sum is σ = 53780493312. Its totient is φ = 14634147680.

The previous prime is 30000002891. The next prime is 30000002909. The reversal of 30000002908 is 80920000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000002909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91463260 + ... + 91463587.

It is an arithmetic number, because the mean of its divisors is an integer number (4481707776).

Almost surely, 230000002908 is an apocalyptic number.

It is an amenable number.

30000002908 is a deficient number, since it is larger than the sum of its proper divisors (23780490404).

30000002908 is a wasteful number, since it uses less digits than its factorization.

30000002908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182926892 (or 182926890 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 30000002908 in words is "thirty billion, two thousand, nine hundred eight".

Divisors: 1 2 4 41 82 164 182926847 365853694 731707388 7500000727 15000001454 30000002908