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8272032805920 = 2535132195366989
BaseRepresentation
bin111100001011111101110…
…0100111011010000100000
31002021210120012002202201110
41320113323210323100200
52041012110344242140
625332041443103320
71512430453500612
oct170277344732040
932253505082643
108272032805920
1126aa17095a6a4
12b17213071b40
13480084550200
14208523330db2
15e52941dd380
hex785fb93b420

8272032805920 has 288 divisors, whose sum is σ = 29700493300800. Its totient is φ = 1929024294912.

The previous prime is 8272032805903. The next prime is 8272032805943. The reversal of 8272032805920 is 295082302728.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8272032805920.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1142215 + ... + 4224774.

It is an arithmetic number, because the mean of its divisors is an integer number (103126712850).

Almost surely, 28272032805920 is an apocalyptic number.

8272032805920 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 8272032805920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14850246650400).

8272032805920 is an abundant number, since it is smaller than the sum of its proper divisors (21428460494880).

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

8272032805920 is a wasteful number, since it uses less digits than its factorization.

8272032805920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5367052 (or 5367031 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 8272032805920 in words is "eight trillion, two hundred seventy-two billion, thirty-two million, eight hundred five thousand, nine hundred twenty".