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47065668720 = 243571011032693
BaseRepresentation
bin101011110101010101…
…010001110001110000
311111111002100200211120
4223311111101301300
51232342302344340
633342140342240
73254221404030
oct536525216160
9144432320746
1047065668720
1118a62385584
129156244980
134590b6b725
1423c6b3d8c0
151356e734d0
hexaf5551c70

47065668720 has 320 divisors, whose sum is σ = 170095970304. Its totient is φ = 10544025600.

The previous prime is 47065668719. The next prime is 47065668787. The reversal of 47065668720 is 2786656074.

47065668720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17475694 + ... + 17478386.

Almost surely, 247065668720 is an apocalyptic number.

47065668720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47065668720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85047985152).

47065668720 is an abundant number, since it is smaller than the sum of its proper divisors (123030301584).

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

47065668720 is a wasteful number, since it uses less digits than its factorization.

47065668720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 47065668720 in words is "forty-seven billion, sixty-five million, six hundred sixty-eight thousand, seven hundred twenty".