Base | Representation |
---|---|
bin | 1110101010100… |
… | …10001101000111 |
3 | 22120111001212010 |
4 | 13111102031013 |
5 | 222443120403 |
6 | 20112425303 |
7 | 3022440123 |
oct | 725221507 |
9 | 276431763 |
10 | 123020103 |
11 | 63494908 |
12 | 35248233 |
13 | 1c64377b |
14 | 124a4583 |
15 | ac00603 |
hex | 7552347 |
123020103 has 16 divisors (see below), whose sum is σ = 170274816. Its totient is φ = 78947040.
The previous prime is 123020101. The next prime is 123020113. The reversal of 123020103 is 301020321.
It is a happy number.
It is not a de Polignac number, because 123020103 - 21 = 123020101 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123020101) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450 + ... + 15752.
It is an arithmetic number, because the mean of its divisors is an integer number (10642176).
Almost surely, 2123020103 is an apocalyptic number.
123020103 is a deficient number, since it is larger than the sum of its proper divisors (47254713).
123020103 is a wasteful number, since it uses less digits than its factorization.
123020103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14414.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 123020103 is about 11091.4427826140. The cubic root of 123020103 is about 497.3460756274.
Adding to 123020103 its reverse (301020321), we get a palindrome (424040424).
The spelling of 123020103 in words is "one hundred twenty-three million, twenty thousand, one hundred three".
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