Base | Representation |
---|---|
bin | 111101001010110… |
… | …000101111110101 |
3 | 2122112000221200010 |
4 | 331022300233311 |
5 | 4100203400120 |
6 | 245455410433 |
7 | 34300551642 |
oct | 7512605765 |
9 | 2575027603 |
10 | 1026231285 |
11 | 48730a832 |
12 | 247823a19 |
13 | 1347c2961 |
14 | 9a418dc9 |
15 | 601637e0 |
hex | 3d2b0bf5 |
1026231285 has 32 divisors (see below), whose sum is σ = 1705853952. Its totient is φ = 526256640.
The previous prime is 1026231277. The next prime is 1026231289. The reversal of 1026231285 is 5821326201.
It is not a de Polignac number, because 1026231285 - 23 = 1026231277 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1026231289) 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, 65977 + ... + 80033.
It is an arithmetic number, because the mean of its divisors is an integer number (53307936).
Almost surely, 21026231285 is an apocalyptic number.
1026231285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1026231285 is a deficient number, since it is larger than the sum of its proper divisors (679622667).
1026231285 is a wasteful number, since it uses less digits than its factorization.
1026231285 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14253.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 1026231285 is about 32034.8448568118. The cubic root of 1026231285 is about 1008.6684033322.
Adding to 1026231285 its reverse (5821326201), we get a palindrome (6847557486).
The spelling of 1026231285 in words is "one billion, twenty-six million, two hundred thirty-one thousand, two hundred eighty-five".
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