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42547982880 = 25351319418753
BaseRepresentation
bin100111101000000011…
…101011001000100000
311001211020112110220210
4213220003223020200
51144114240423010
631313554534120
73034243613214
oct475003531040
9131736473823
1042547982880
1117054255317
1282b5297340
134020c11c40
1420b8b4c944
15119053eb20
hex9e80eb220

42547982880 has 384 divisors, whose sum is σ = 155655924480. Its totient is φ = 9679011840.

The previous prime is 42547982879. The next prime is 42547982929. The reversal of 42547982880 is 8828974524.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 42547982880.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4856584 + ... + 4865336.

It is an arithmetic number, because the mean of its divisors is an integer number (405353970).

Almost surely, 242547982880 is an apocalyptic number.

42547982880 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 42547982880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77827962240).

42547982880 is an abundant number, since it is smaller than the sum of its proper divisors (113107941600).

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

42547982880 is a wasteful number, since it uses less digits than its factorization.

42547982880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8844 (or 8836 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 42547982880 in words is "forty-two billion, five hundred forty-seven million, nine hundred eighty-two thousand, eight hundred eighty".