Base | Representation |
---|---|
bin | 101101101000000… |
… | …0110000110101000 |
3 | 10221200202010001020 |
4 | 1123100012012220 |
5 | 11113410232320 |
6 | 411525252440 |
7 | 52636553205 |
oct | 13320060650 |
9 | 3850663036 |
10 | 1530945960 |
11 | 7161a73a5 |
12 | 368864120 |
13 | 1b52389ab |
14 | 10747acac |
15 | 8e60d940 |
hex | 5b4061a8 |
1530945960 has 128 divisors (see below), whose sum is σ = 4805568000. Its totient is φ = 389666816.
The previous prime is 1530945917. The next prime is 1530945967. The reversal of 1530945960 is 695490351.
It is not an unprimeable number, because it can be changed into a prime (1530945967) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307249 + ... + 312191.
It is an arithmetic number, because the mean of its divisors is an integer number (37543500).
Almost surely, 21530945960 is an apocalyptic number.
1530945960 is a gapful number since it is divisible by the number (10) 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 1530945960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2402784000).
1530945960 is an abundant number, since it is smaller than the sum of its proper divisors (3274622040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1530945960 is a wasteful number, since it uses less digits than its factorization.
1530945960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5075 (or 5071 counting only the distinct ones).
The product of its (nonzero) digits is 145800, while the sum is 42.
The square root of 1530945960 is about 39127.3045327684. The cubic root of 1530945960 is about 1152.5327818670.
The spelling of 1530945960 in words is "one billion, five hundred thirty million, nine hundred forty-five thousand, nine hundred sixty".
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