Base | Representation |
---|---|
bin | 1001011100000001110111… |
… | …10111010010000001001100 |
3 | 2201111002102220020210001120 |
4 | 10232000323313102001030 |
5 | 10210014234244243430 |
6 | 112050215411440540 |
7 | 4241306363664666 |
oct | 456007367220114 |
9 | 81432386223046 |
10 | 20754286321740 |
11 | 6681930624744 |
12 | 23b23a05b6150 |
13 | b7717553103a |
14 | 51a727259536 |
15 | 25eceec64610 |
hex | 12e03bdd204c |
20754286321740 has 48 divisors (see below), whose sum is σ = 58112399331168. Its totient is φ = 5534438482944.
The previous prime is 20754286321679. The next prime is 20754286321753. The reversal of 20754286321740 is 4712368245702.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8284404 + ... + 10494756.
It is an arithmetic number, because the mean of its divisors is an integer number (1210674986066).
Almost surely, 220754286321740 is an apocalyptic number.
20754286321740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20754286321740 is an abundant number, since it is smaller than the sum of its proper divisors (37358113009428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20754286321740 is a wasteful number, since it uses less digits than its factorization.
20754286321740 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2366858 (or 2366856 counting only the distinct ones).
The product of its (nonzero) digits is 4515840, while the sum is 51.
The spelling of 20754286321740 in words is "twenty trillion, seven hundred fifty-four billion, two hundred eighty-six million, three hundred twenty-one thousand, seven hundred forty".
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