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47069921052 = 223271127731997
BaseRepresentation
bin101011110101100101…
…011111111100011100
311111111101100201221100
4223311211133330130
51232344344433202
633342411433100
73254302504350
oct536545377434
9144441321840
1047069921052
1118a6481a400
129157755790
1345919ca0bb
1423c7529460
15135751341c
hexaf595ff1c

47069921052 has 216 divisors, whose sum is σ = 149733668448. Its totient is φ = 12204023040.

The previous prime is 47069921039. The next prime is 47069921053. The reversal of 47069921052 is 25012996074.

It is a junction number, because it is equal to n+sod(n) for n = 47069920989 and 47069921007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47069921053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 23569318 + ... + 23571314.

It is an arithmetic number, because the mean of its divisors is an integer number (693211428).

Almost surely, 247069921052 is an apocalyptic number.

47069921052 is a gapful number since it is divisible by the number (42) 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 47069921052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74866834224).

47069921052 is an abundant number, since it is smaller than the sum of its proper divisors (102663747396).

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

47069921052 is a wasteful number, since it uses less digits than its factorization.

47069921052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 47069921052 in words is "forty-seven billion, sixty-nine million, nine hundred twenty-one thousand, fifty-two".