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47284078816 = 2513113663651
BaseRepresentation
bin101100000010010110…
…011100100011100000
311112001022100002011101
4230002112130203200
51233314211010231
633415541524144
73262513016122
oct540226344340
9145038302141
1047284078816
11190646a2297
1291b7413654
1345c71a0580
142407b55212
15136b217661
hexb0259c8e0

47284078816 has 24 divisors (see below), whose sum is σ = 100251341064. Its totient is φ = 21823420800.

The previous prime is 47284078789. The next prime is 47284078847. The reversal of 47284078816 is 61887048274.

It is a congruent number.

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, 56831410 + ... + 56832241.

It is an arithmetic number, because the mean of its divisors is an integer number (4177139211).

Almost surely, 247284078816 is an apocalyptic number.

It is an amenable number.

47284078816 is an abundant number, since it is smaller than the sum of its proper divisors (52967262248).

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

47284078816 is a wasteful number, since it uses less digits than its factorization.

47284078816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113663674 (or 113663666 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 55.

The spelling of 47284078816 in words is "forty-seven billion, two hundred eighty-four million, seventy-eight thousand, eight hundred sixteen".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 113663651 227327302 454654604 909309208 1477627463 1818618416 2955254926 3637236832 5910509852 11821019704 23642039408 47284078816