Base | Representation |
---|---|
bin | 1110010100100… |
… | …00101001001011 |
3 | 22101001020112211 |
4 | 13022100221023 |
5 | 221223130443 |
6 | 15530445551 |
7 | 2656042411 |
oct | 712205113 |
9 | 271036484 |
10 | 120130123 |
11 | 618a05a3 |
12 | 342938b7 |
13 | 1bb71219 |
14 | 11d512b1 |
15 | a82e19d |
hex | 7290a4b |
120130123 has 4 divisors (see below), whose sum is σ = 123060168. Its totient is φ = 117200080.
The previous prime is 120130121. The next prime is 120130147. The reversal of 120130123 is 321031021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321031021 = 491 ⋅653831.
It is a cyclic number.
It is not a de Polignac number, because 120130123 - 21 = 120130121 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (120130121) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1464961 + ... + 1465042.
It is an arithmetic number, because the mean of its divisors is an integer number (30765042).
Almost surely, 2120130123 is an apocalyptic number.
120130123 is a deficient number, since it is larger than the sum of its proper divisors (2930045).
120130123 is an equidigital number, since it uses as much as digits as its factorization.
120130123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2930044.
The product of its (nonzero) digits is 36, while the sum is 13.
The square root of 120130123 is about 10960.3888160959. The cubic root of 120130123 is about 493.4206343047.
Adding to 120130123 its reverse (321031021), we get a palindrome (441161144).
The spelling of 120130123 in words is "one hundred twenty million, one hundred thirty thousand, one hundred twenty-three".
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