Base | Representation |
---|---|
bin | 111101011101000… |
… | …101101000011101 |
3 | 2122212002000201002 |
4 | 331131011220131 |
5 | 4102421113141 |
6 | 250150400045 |
7 | 34356441113 |
oct | 7535055035 |
9 | 2585060632 |
10 | 1031035421 |
11 | 489aa1199 |
12 | 249360025 |
13 | 1357b5540 |
14 | 9ad09ab3 |
15 | 607b1e9b |
hex | 3d745a1d |
1031035421 has 16 divisors (see below), whose sum is σ = 1161592320. Its totient is φ = 908012160.
The previous prime is 1031035387. The next prime is 1031035433. The reversal of 1031035421 is 1245301301.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1031035421 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1031035393 and 1031035402.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031035021) 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, 118076 + ... + 126506.
It is an arithmetic number, because the mean of its divisors is an integer number (72599520).
Almost surely, 21031035421 is an apocalyptic number.
It is an amenable number.
1031035421 is a deficient number, since it is larger than the sum of its proper divisors (130556899).
1031035421 is a wasteful number, since it uses less digits than its factorization.
1031035421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8876.
The product of its (nonzero) digits is 360, while the sum is 20.
The square root of 1031035421 is about 32109.7402823505. The cubic root of 1031035421 is about 1010.2399263358.
Adding to 1031035421 its reverse (1245301301), we get a palindrome (2276336722).
The spelling of 1031035421 in words is "one billion, thirty-one million, thirty-five thousand, four hundred twenty-one".
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