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80389854720 = 2932572312297
BaseRepresentation
bin100101011011110011…
…0111101011000000000
321200111111200202010200
41022313212331120000
52304114300322340
6100533001325200
75544064330200
oct1126746753000
9250444622120
1080389854720
1131102a8276a
12136b6496800
137771b33696
143c6885c400
15215782b330
hex12b79bd600

80389854720 has 720 divisors, whose sum is σ = 334460700288. Its totient is φ = 17774346240.

The previous prime is 80389854719. The next prime is 80389854737. The reversal of 80389854720 is 2745898308.

It is a happy number.

80389854720 is a `hidden beast` number, since 8 + 0 + 3 + 8 + 98 + 547 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 34996612 + ... + 34998908.

Almost surely, 280389854720 is an apocalyptic number.

80389854720 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 80389854720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167230350144).

80389854720 is an abundant number, since it is smaller than the sum of its proper divisors (254070845568).

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

80389854720 is a wasteful number, since it uses less digits than its factorization.

80389854720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371 (or 2345 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 80389854720 in words is "eighty billion, three hundred eighty-nine million, eight hundred fifty-four thousand, seven hundred twenty".