Base | Representation |
---|---|
bin | 1110101010100… |
… | …10001101001100 |
3 | 22120111001212022 |
4 | 13111102031030 |
5 | 222443120413 |
6 | 20112425312 |
7 | 3022440131 |
oct | 725221514 |
9 | 276431768 |
10 | 123020108 |
11 | 63494912 |
12 | 35248238 |
13 | 1c643783 |
14 | 124a4588 |
15 | ac00608 |
hex | 755234c |
123020108 has 6 divisors (see below), whose sum is σ = 215285196. Its totient is φ = 61510052.
The previous prime is 123020101. The next prime is 123020113. The reversal of 123020108 is 801020321.
It is not an unprimeable number, because it can be changed into a prime (123020101) by changing a digit.
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 as a sum of consecutive naturals, namely, 15377510 + ... + 15377517.
It is an arithmetic number, because the mean of its divisors is an integer number (35880866).
Almost surely, 2123020108 is an apocalyptic number.
It is an amenable number.
123020108 is a deficient number, since it is larger than the sum of its proper divisors (92265088).
123020108 is a wasteful number, since it uses less digits than its factorization.
123020108 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30755031 (or 30755029 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 17.
The square root of 123020108 is about 11091.4430080130. The cubic root of 123020108 is about 497.3460823654.
Adding to 123020108 its reverse (801020321), we get a palindrome (924040429).
The spelling of 123020108 in words is "one hundred twenty-three million, twenty thousand, one hundred eight".
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