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80492529040 = 245711432291327
BaseRepresentation
bin100101011110110111…
…0101000010110010000
321200202122220010211021
41022331232220112100
52304322041412130
6100551110125224
75546452131220
oct1127556502620
9250678803737
1080492529040
1131155a30480
1213724950814
13778a1a2511
143c78348080
15216185d37a
hex12bdba8590

80492529040 has 320 divisors, whose sum is σ = 239973212160. Its totient is φ = 24379729920.

The previous prime is 80492529017. The next prime is 80492529041. The reversal of 80492529040 is 4092529408.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (80492529041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60656857 + ... + 60658183.

It is an arithmetic number, because the mean of its divisors is an integer number (749916288).

Almost surely, 280492529040 is an apocalyptic number.

80492529040 is a gapful number since it is divisible by the number (80) 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 80492529040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119986606080).

80492529040 is an abundant number, since it is smaller than the sum of its proper divisors (159480683120).

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

80492529040 is a wasteful number, since it uses less digits than its factorization.

80492529040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 80492529040 in words is "eighty billion, four hundred ninety-two million, five hundred twenty-nine thousand, forty".