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79284389371320 = 2335742937337761
BaseRepresentation
bin10010000001101111010101…
…110111010101110110111000
3101101201111212102012112010110
4102001233111313111312320
540342443412134340240
6440342425021144320
722462052036130000
oct2201572567256670
9341644772175113
1079284389371320
1123298358951131
128a85a196bb0a0
1335316414cb8b3
141581556317000
1592758014ec80
hex481bd5dd5db8

79284389371320 has 1280 divisors, whose sum is σ = 296068451702400. Its totient is φ = 16951524065280.

The previous prime is 79284389371279. The next prime is 79284389371321. The reversal of 79284389371320 is 2317398348297.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79284389371321) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 104184479740 + ... + 104184480500.

Almost surely, 279284389371320 is an apocalyptic number.

79284389371320 is a gapful number since it is divisible by the number (70) 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 79284389371320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148034225851200).

79284389371320 is an abundant number, since it is smaller than the sum of its proper divisors (216784062331080).

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

79284389371320 is a wasteful number, since it uses less digits than its factorization.

79284389371320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 66.

The spelling of 79284389371320 in words is "seventy-nine trillion, two hundred eighty-four billion, three hundred eighty-nine million, three hundred seventy-one thousand, three hundred twenty".