Base | Representation |
---|---|
bin | 10111111000111100110… |
… | …00011101000101101100 |
3 | 2220110202100020021211112 |
4 | 23330132120131011230 |
5 | 101422044202334440 |
6 | 1425031555411152 |
7 | 113206250651240 |
oct | 13743630350554 |
9 | 2813670207745 |
10 | 820848480620 |
11 | 297135627873 |
12 | 1131045b3ab8 |
13 | 5c53737cb3c |
14 | 2ba2d1d6420 |
15 | 165437ae965 |
hex | bf1e61d16c |
820848480620 has 48 divisors (see below), whose sum is σ = 1999439904000. Its totient is φ = 277233257664.
The previous prime is 820848480611. The next prime is 820848480623. The reversal of 820848480620 is 26084848028.
It is not an unprimeable number, because it can be changed into a prime (820848480623) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43745870 + ... + 43764629.
It is an arithmetic number, because the mean of its divisors is an integer number (41654998000).
Almost surely, 2820848480620 is an apocalyptic number.
It is an amenable number.
820848480620 is an abundant number, since it is smaller than the sum of its proper divisors (1178591423380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
820848480620 is a wasteful number, since it uses less digits than its factorization.
820848480620 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87510582 (or 87510580 counting only the distinct ones).
The product of its (nonzero) digits is 1572864, while the sum is 50.
The spelling of 820848480620 in words is "eight hundred twenty billion, eight hundred forty-eight million, four hundred eighty thousand, six hundred twenty".
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