Base | Representation |
---|---|
bin | 111101011101110… |
… | …000010110101100 |
3 | 2122212101220202020 |
4 | 331131300112230 |
5 | 4102442213122 |
6 | 250154230140 |
7 | 34361100231 |
oct | 7535602654 |
9 | 2585356666 |
10 | 1031210412 |
11 | 48a100711 |
12 | 249425350 |
13 | 13584709b |
14 | 9ad53788 |
15 | 607e8c5c |
hex | 3d7705ac |
1031210412 has 48 divisors (see below), whose sum is σ = 2629896192. Its totient is φ = 313079040.
The previous prime is 1031210357. The next prime is 1031210419. The reversal of 1031210412 is 2140121301.
It is a junction number, because it is equal to n+sod(n) for n = 1031210391 and 1031210400.
It is not an unprimeable number, because it can be changed into a prime (1031210419) 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, 75208 + ... + 87855.
It is an arithmetic number, because the mean of its divisors is an integer number (54789504).
Almost surely, 21031210412 is an apocalyptic number.
1031210412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1031210412 is an abundant number, since it is smaller than the sum of its proper divisors (1598685780).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1031210412 is a wasteful number, since it uses less digits than its factorization.
1031210412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163118 (or 163116 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 1031210412 is about 32112.4650564232. The cubic root of 1031210412 is about 1010.2970769408.
Adding to 1031210412 its reverse (2140121301), we get a palindrome (3171331713).
The spelling of 1031210412 in words is "one billion, thirty-one million, two hundred ten thousand, four hundred twelve".
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