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80490537120 = 2535730778031
BaseRepresentation
bin100101011110110011…
…1000010000010100000
321200202112010221102110
41022331213002002200
52304321034141440
6100550555315320
75546426163660
oct1127547020240
9250675127373
1080490537120
113115489a964
121372414bb40
137789955976
143c77d8a1a0
1521615b8080
hex12bd9c20a0

80490537120 has 192 divisors, whose sum is σ = 290713522176. Its totient is φ = 18337674240.

The previous prime is 80490537107. The next prime is 80490537137. The reversal of 80490537120 is 2173509408.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 992505 + ... + 1070535.

It is an arithmetic number, because the mean of its divisors is an integer number (1514132928).

Almost surely, 280490537120 is an apocalyptic number.

80490537120 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 80490537120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145356761088).

80490537120 is an abundant number, since it is smaller than the sum of its proper divisors (210222985056).

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

80490537120 is a wasteful number, since it uses less digits than its factorization.

80490537120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78363 (or 78355 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 80490537120 in words is "eighty billion, four hundred ninety million, five hundred thirty-seven thousand, one hundred twenty".