Base | Representation |
---|---|
bin | 10010101011110010… |
… | …10110001011001011 |
3 | 221220002011011122012 |
4 | 21111321112023023 |
5 | 131020420442422 |
6 | 4335211450135 |
7 | 503402233205 |
oct | 112571261313 |
9 | 27802134565 |
10 | 10031030987 |
11 | 428828a05a |
12 | 1b3b45694b |
13 | c3b2637c3 |
14 | 6b231d775 |
15 | 3da98c4e2 |
hex | 255e562cb |
10031030987 has 2 divisors, whose sum is σ = 10031030988. Its totient is φ = 10031030986.
The previous prime is 10031030953. The next prime is 10031031007. The reversal of 10031030987 is 78903013001.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 10031030987 - 220 = 10029982411 is a prime.
It is not a weakly prime, because it can be changed into another prime (10031030287) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015515493 + 5015515494.
It is an arithmetic number, because the mean of its divisors is an integer number (5015515494).
Almost surely, 210031030987 is an apocalyptic number.
10031030987 is a deficient number, since it is larger than the sum of its proper divisors (1).
10031030987 is an equidigital number, since it uses as much as digits as its factorization.
10031030987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 4536, while the sum is 32.
Adding to 10031030987 its reverse (78903013001), we get a palindrome (88934043988).
The spelling of 10031030987 in words is "ten billion, thirty-one million, thirty thousand, nine hundred eighty-seven".
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