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42943582080 = 273957487
BaseRepresentation
bin100111111111101000…
…110000111110000000
311002211210221000000000
4213333220300332000
51200422024111310
631421130000000
73050116265520
oct477750607600
9132753830000
1042943582080
1117237594903
1283a5876000
134084b723c9
1421154c9680
1511b51344c0
hex9ffa30f80

42943582080 has 640 divisors, whose sum is σ = 176350394880. Its totient is φ = 9795520512.

The previous prime is 42943582067. The next prime is 42943582109. The reversal of 42943582080 is 8028534924.

42943582080 is a `hidden beast` number, since 4 + 2 + 9 + 435 + 8 + 208 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 88179597 + ... + 88180083.

It is an arithmetic number, because the mean of its divisors is an integer number (275547492).

Almost surely, 242943582080 is an apocalyptic number.

42943582080 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 42943582080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88175197440).

42943582080 is an abundant number, since it is smaller than the sum of its proper divisors (133406812800).

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

42943582080 is an frugal number, since it uses more digits than its factorization.

42943582080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 42943582080 in words is "forty-two billion, nine hundred forty-three million, five hundred eighty-two thousand, eighty".