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47439404320 = 25571122716963
BaseRepresentation
bin101100001011100110…
…111101110100100000
311112110010121102200211
4230023212331310200
51234123441414240
633443211023504
73266410166140
oct541346756440
9145403542624
1047439404320
1119134341680
12923b43ab94
134620415459
142420628920
151379b99bea
hexb0b9bdd20

47439404320 has 192 divisors, whose sum is σ = 140354436096. Its totient is φ = 14720302080.

The previous prime is 47439404279. The next prime is 47439404321. The reversal of 47439404320 is 2340493474.

47439404320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (47439404321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2788159 + ... + 2805121.

It is an arithmetic number, because the mean of its divisors is an integer number (731012688).

Almost surely, 247439404320 is an apocalyptic number.

47439404320 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 47439404320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70177218048).

47439404320 is an abundant number, since it is smaller than the sum of its proper divisors (92915031776).

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

47439404320 is a wasteful number, since it uses less digits than its factorization.

47439404320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17223 (or 17215 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 40.

Adding to 47439404320 its reverse (2340493474), we get a palindrome (49779897794).

The spelling of 47439404320 in words is "forty-seven billion, four hundred thirty-nine million, four hundred four thousand, three hundred twenty".