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8478998912 = 2766242179
BaseRepresentation
bin1111110010110001…
…10100000110000000
3210212220201202212202
413321120310012000
5114331110431122
63521210212332
7420055205306
oct77130640600
923786652782
108478998912
1136611a041a
1217877240a8
13a51854227
145a6154276
153495b5e92
hex1f9634180

8478998912 has 16 divisors (see below), whose sum is σ = 16891755900. Its totient is φ = 4239499392.

The previous prime is 8478998887. The next prime is 8478998933. The reversal of 8478998912 is 2198998748.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33120962 + ... + 33121217.

Almost surely, 28478998912 is an apocalyptic number.

It is an amenable number.

8478998912 is a deficient number, since it is larger than the sum of its proper divisors (8412756988).

8478998912 is an equidigital number, since it uses as much as digits as its factorization.

8478998912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66242193 (or 66242181 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 65.

The square root of 8478998912 is about 92081.4797448434. The cubic root of 8478998912 is about 2039.1453962336.

The spelling of 8478998912 in words is "eight billion, four hundred seventy-eight million, nine hundred ninety-eight thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 32 64 128 66242179 132484358 264968716 529937432 1059874864 2119749728 4239499456 8478998912