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80527553280 = 283257739043
BaseRepresentation
bin100101011111111010…
…0001111001100000000
321200212002210120001100
41022333310033030000
52304410023201110
6100554400534400
75550355623546
oct1127764171400
9250762716040
1080527553280
1131173782729
1213734621400
137794516315
143c7cc63d96
15216497abc0
hex12bfd0f300

80527553280 has 216 divisors, whose sum is σ = 279008232048. Its totient is φ = 21443862528.

The previous prime is 80527553273. The next prime is 80527553303. The reversal of 80527553280 is 8235572508.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8900439 + ... + 8909481.

It is an arithmetic number, because the mean of its divisors is an integer number (1291704778).

Almost surely, 280527553280 is an apocalyptic number.

80527553280 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 80527553280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139504116024).

80527553280 is an abundant number, since it is smaller than the sum of its proper divisors (198480678768).

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

80527553280 is a wasteful number, since it uses less digits than its factorization.

80527553280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9843 (or 9826 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 80527553280 in words is "eighty billion, five hundred twenty-seven million, five hundred fifty-three thousand, two hundred eighty".