Base | Representation |
---|---|
bin | 110111111011111101… |
… | …0000001110101101111 |
3 | 102111001121011221222201 |
4 | 1233313322001311233 |
5 | 3432003031114411 |
6 | 131103415122331 |
7 | 11451524133133 |
oct | 1576772016557 |
9 | 374047157881 |
10 | 120123301231 |
11 | 46a4252116a |
12 | 1b3450733a7 |
13 | b4348c8a8b |
14 | 5b578813c3 |
15 | 31d0c0e3c1 |
hex | 1bf7e81d6f |
120123301231 has 24 divisors (see below), whose sum is σ = 133283719296. Its totient is φ = 107775106560.
The previous prime is 120123301223. The next prime is 120123301237. The reversal of 120123301231 is 132103321021.
It is not a de Polignac number, because 120123301231 - 23 = 120123301223 is a prime.
It is a super-2 number, since 2×1201233012312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 120123301199 and 120123301208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (120123301237) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2340315 + ... + 2391091.
It is an arithmetic number, because the mean of its divisors is an integer number (5553488304).
Almost surely, 2120123301231 is an apocalyptic number.
120123301231 is a deficient number, since it is larger than the sum of its proper divisors (13160418065).
120123301231 is an equidigital number, since it uses as much as digits as its factorization.
120123301231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 50959 (or 50892 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 120123301231 its reverse (132103321021), we get a palindrome (252226622252).
The spelling of 120123301231 in words is "one hundred twenty billion, one hundred twenty-three million, three hundred one thousand, two hundred thirty-one".
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