Base | Representation |
---|---|
bin | 1110101100100… |
… | …10011001010001 |
3 | 22120222102111222 |
4 | 13112102121101 |
5 | 223030024100 |
6 | 20122214425 |
7 | 3024613505 |
oct | 726223121 |
9 | 276872458 |
10 | 123283025 |
11 | 636543a8 |
12 | 35354415 |
13 | 1c706348 |
14 | 12532305 |
15 | ac53485 |
hex | 7592651 |
123283025 has 12 divisors (see below), whose sum is σ = 153335052. Its totient is φ = 98327040.
The previous prime is 123283009. The next prime is 123283073. The reversal of 123283025 is 520382321.
It can be written as a sum of positive squares in 6 ways, for example, as 42211009 + 81072016 = 6497^2 + 9004^2 .
It is not a de Polignac number, because 123283025 - 24 = 123283009 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 123282985 and 123283003.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1109 + ... + 15741.
It is an arithmetic number, because the mean of its divisors is an integer number (12777921).
Almost surely, 2123283025 is an apocalyptic number.
It is an amenable number.
123283025 is a deficient number, since it is larger than the sum of its proper divisors (30052027).
123283025 is a wasteful number, since it uses less digits than its factorization.
123283025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14980 (or 14975 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 123283025 is about 11103.2889271603. The cubic root of 123283025 is about 497.7001374846.
The spelling of 123283025 in words is "one hundred twenty-three million, two hundred eighty-three thousand, twenty-five".
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