Base | Representation |
---|---|
bin | 10111101110111101000… |
… | …01001101111100000100 |
3 | 2212221220100101022122222 |
4 | 23313132201031330010 |
5 | 101330101402144430 |
6 | 1422343254511512 |
7 | 112626256133453 |
oct | 13673641157404 |
9 | 2787810338588 |
10 | 815482068740 |
11 | 294931406129 |
12 | 112067365598 |
13 | 5bb9063cbb1 |
14 | 2b6805d4b9a |
15 | 1632c5cb9e5 |
hex | bdde84df04 |
815482068740 has 48 divisors (see below), whose sum is σ = 1737322836480. Its totient is φ = 321470674560.
The previous prime is 815482068733. The next prime is 815482068763. The reversal of 815482068740 is 47860284518.
It is a super-2 number, since 2×8154820687402 (a number of 25 digits) contains 22 as substring.
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, 3498146 + ... + 3723974.
It is an arithmetic number, because the mean of its divisors is an integer number (36194225760).
Almost surely, 2815482068740 is an apocalyptic number.
It is an amenable number.
815482068740 is an abundant number, since it is smaller than the sum of its proper divisors (921840767740).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
815482068740 is a wasteful number, since it uses less digits than its factorization.
815482068740 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 228452 (or 228450 counting only the distinct ones).
The product of its (nonzero) digits is 3440640, while the sum is 53.
The spelling of 815482068740 in words is "eight hundred fifteen billion, four hundred eighty-two million, sixty-eight thousand, seven hundred forty".
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