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42180768000 = 2832537461
BaseRepresentation
bin100111010010001010…
…110111000100000000
311000212122120000210200
4213102022313010000
51142341234034000
631213320125200
73022164420000
oct472212670400
9130778500720
1042180768000
1116985a42348
128212306800
133c92b0c227
142082080000
15116d1a5500
hex9d22b7100

42180768000 has 1080 divisors, whose sum is σ = 179967319896. Its totient is φ = 9483264000.

The previous prime is 42180767971. The next prime is 42180768013. The reversal of 42180768000 is 86708124.

It can be written as a sum of positive squares in 4 ways, for example, as 10228490496 + 31952277504 = 101136^2 + 178752^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 691487970 + ... + 691488030.

Almost surely, 242180768000 is an apocalyptic number.

42180768000 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 42180768000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89983659948).

42180768000 is an abundant number, since it is smaller than the sum of its proper divisors (137786551896).

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

42180768000 is an frugal number, since it uses more digits than its factorization.

42180768000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 42180768000 in words is "forty-two billion, one hundred eighty million, seven hundred sixty-eight thousand".