Base | Representation |
---|---|
bin | 111100111010011… |
… | …101111110000100 |
3 | 2122012222221122220 |
4 | 330322131332010 |
5 | 4043110210233 |
6 | 245224052340 |
7 | 34216342263 |
oct | 7472357604 |
9 | 2565887586 |
10 | 1021960068 |
11 | 4849627a8 |
12 | 2463040b0 |
13 | 1339587cc |
14 | 99a265da |
15 | 5eabceb3 |
hex | 3ce9df84 |
1021960068 has 24 divisors (see below), whose sum is σ = 2510077920. Its totient is φ = 322724160.
The previous prime is 1021960067. The next prime is 1021960097. The reversal of 1021960068 is 8600691201.
It is not an unprimeable number, because it can be changed into a prime (1021960061) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240913 + ... + 2241368.
It is an arithmetic number, because the mean of its divisors is an integer number (104586580).
Almost surely, 21021960068 is an apocalyptic number.
It is an amenable number.
1021960068 is an abundant number, since it is smaller than the sum of its proper divisors (1488117852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1021960068 is a wasteful number, since it uses less digits than its factorization.
1021960068 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4482307 (or 4482305 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 33.
The square root of 1021960068 is about 31968.1101724828. The cubic root of 1021960068 is about 1007.2670842274.
The spelling of 1021960068 in words is "one billion, twenty-one million, nine hundred sixty thousand, sixty-eight".
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