Base | Representation |
---|---|
bin | 1110101010101… |
… | …00000111011000 |
3 | 22120111110120221 |
4 | 13111110013120 |
5 | 222443343203 |
6 | 20112525424 |
7 | 3022502002 |
oct | 725240730 |
9 | 276443527 |
10 | 123027928 |
11 | 6349a781 |
12 | 35250874 |
13 | 1c6471ba |
14 | 124a7372 |
15 | ac02abd |
hex | 75541d8 |
123027928 has 8 divisors (see below), whose sum is σ = 230677380. Its totient is φ = 61513960.
The previous prime is 123027887. The next prime is 123027967. The reversal of 123027928 is 829720321.
It is a tau number, because it is divible by the number of its divisors (8).
It is a junction number, because it is equal to n+sod(n) for n = 123027893 and 123027902.
It is a congruent number.
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 as a sum of consecutive naturals, namely, 7689238 + ... + 7689253.
Almost surely, 2123027928 is an apocalyptic number.
It is an amenable number.
123027928 is a deficient number, since it is larger than the sum of its proper divisors (107649452).
123027928 is a wasteful number, since it uses less digits than its factorization.
123027928 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15378497 (or 15378493 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 34.
The square root of 123027928 is about 11091.7955264240. The cubic root of 123027928 is about 497.3566203824.
The spelling of 123027928 in words is "one hundred twenty-three million, twenty-seven thousand, nine hundred twenty-eight".
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