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30707918248 = 2373117688893
BaseRepresentation
bin11100100110010101…
…011010010110101000
32221021002100212122111
4130212111122112220
51000342211340443
622035041132104
72134653666310
oct344625322650
987232325574
1030707918248
1112028901537
125b5002a034
132b84c47637
1416b4484440
15bead6269d
hex72655a5a8

30707918248 has 32 divisors (see below), whose sum is σ = 67925352960. Its totient is φ = 12736002240.

The previous prime is 30707918243. The next prime is 30707918281. The reversal of 30707918248 is 84281970703.

It is not an unprimeable number, because it can be changed into a prime (30707918243) 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 7 ways as a sum of consecutive naturals, for example, 8842711 + ... + 8846182.

It is an arithmetic number, because the mean of its divisors is an integer number (2122667280).

Almost surely, 230707918248 is an apocalyptic number.

It is an amenable number.

30707918248 is an abundant number, since it is smaller than the sum of its proper divisors (37217434712).

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

30707918248 is a wasteful number, since it uses less digits than its factorization.

30707918248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17688937 (or 17688933 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 30707918248 in words is "thirty billion, seven hundred seven million, nine hundred eighteen thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 434 868 1736 17688893 35377786 70755572 123822251 141511144 247644502 495289004 548355683 990578008 1096711366 2193422732 3838489781 4386845464 7676979562 15353959124 30707918248