Search a number
-
+
71684448996960 = 2533566889248077
BaseRepresentation
bin10000010011001001010110…
…000111100100111001100000
3100101210222002111120210021000
4100103021112013210321200
533343434222420400320
6412243214203232000
721046013320616232
oct2023112607447140
9311728074523230
1071684448996960
1120928227715988
128058b14b18600
1330cca786c1517
14139b78db1c252
15844a24e5ec90
hex4132561e4e60

71684448996960 has 192 divisors, whose sum is σ = 250900333790400. Its totient is φ = 19115490226176.

The previous prime is 71684448996947. The next prime is 71684448996967. The reversal of 71684448996960 is 6969984448617.

71684448996960 is a `hidden beast` number, since 7 + 1 + 6 + 8 + 44 + 489 + 9 + 6 + 96 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 71684448996960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71684448996967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288836442 + ... + 289084518.

It is an arithmetic number, because the mean of its divisors is an integer number (1306772571825).

Almost surely, 271684448996960 is an apocalyptic number.

It is an amenable number.

71684448996960 is an abundant number, since it is smaller than the sum of its proper divisors (179215884793440).

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

71684448996960 is a wasteful number, since it uses less digits than its factorization.

71684448996960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314990 (or 314976 counting only the distinct ones).

The product of its (nonzero) digits is 4514807808, while the sum is 81.

The spelling of 71684448996960 in words is "seventy-one trillion, six hundred eighty-four billion, four hundred forty-eight million, nine hundred ninety-six thousand, nine hundred sixty".