Base | Representation |
---|---|
bin | 111101011001100… |
… | …001101111100001 |
3 | 2122210022121021101 |
4 | 331121201233201 |
5 | 4102201230420 |
6 | 250114354401 |
7 | 34345502533 |
oct | 7531415741 |
9 | 2583277241 |
10 | 1030101985 |
11 | 489513960 |
12 | 248b8ba01 |
13 | 135549703 |
14 | 9ab45853 |
15 | 6067a60a |
hex | 3d661be1 |
1030101985 has 16 divisors (see below), whose sum is σ = 1349187840. Its totient is φ = 748781440.
The previous prime is 1030101983. The next prime is 1030102027. The reversal of 1030101985 is 5891010301.
It is not a de Polignac number, because 1030101985 - 21 = 1030101983 is a prime.
It is a super-2 number, since 2×10301019852 = 2122220199001880450, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (1030101983) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146664 + ... + 153526.
It is an arithmetic number, because the mean of its divisors is an integer number (84324240).
Almost surely, 21030101985 is an apocalyptic number.
It is an amenable number.
1030101985 is a deficient number, since it is larger than the sum of its proper divisors (319085855).
1030101985 is a wasteful number, since it uses less digits than its factorization.
1030101985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9608.
The product of its (nonzero) digits is 1080, while the sum is 28.
The square root of 1030101985 is about 32095.2018999725. The cubic root of 1030101985 is about 1009.9349646063.
The spelling of 1030101985 in words is "one billion, thirty million, one hundred one thousand, nine hundred eighty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.094 sec. • engine limits •