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80799972043200 = 263525310111032851
BaseRepresentation
bin10010010111110010110101…
…101000011010100111000000
3101121002101211222101102002120
4102113302311220122213000
541042311320320340300
6443502554505444240
723006414426233554
oct2227626550324700
9347071758342076
1080799972043200
1123822091849543
12908b6ab1a0680
1336115350a08b7
1415d4a4d31d864
15951bd55573a0
hex497cb5a1a9c0

80799972043200 has 672 divisors, whose sum is σ = 273110207542272. Its totient is φ = 20904499200000.

The previous prime is 80799972043171. The next prime is 80799972043207. The reversal of 80799972043200 is 234027999708.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80799972043207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 28340921775 + ... + 28340924625.

Almost surely, 280799972043200 is an apocalyptic number.

80799972043200 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 80799972043200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136555103771136).

80799972043200 is an abundant number, since it is smaller than the sum of its proper divisors (192310235499072).

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

80799972043200 is a wasteful number, since it uses less digits than its factorization.

80799972043200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133 (or 4118 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 80799972043200 in words is "eighty trillion, seven hundred ninety-nine billion, nine hundred seventy-two million, forty-three thousand, two hundred".