Base | Representation |
---|---|
bin | 111111011110111… |
… | …0011010011001011 |
3 | 12111110012211012021 |
4 | 1332331303103023 |
5 | 13330303130443 |
6 | 551212025311 |
7 | 103533543622 |
oct | 17675632313 |
9 | 5443184167 |
10 | 2130130123 |
11 | 9a3448320 |
12 | 4b5462237 |
13 | 27c40a134 |
14 | 162c906b9 |
15 | c70199ed |
hex | 7ef734cb |
2130130123 has 8 divisors (see below), whose sum is σ = 2331254016. Its totient is φ = 1930252200.
The previous prime is 2130130111. The next prime is 2130130181. The reversal of 2130130123 is 3210310312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2130130123 is a prime.
It is a super-4 number, since 4×21301301234 (a number of 38 digits) contains 4444 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 2130130097 and 2130130106.
It is not an unprimeable number, because it can be changed into a prime (2130130423) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307911 + ... + 314752.
It is an arithmetic number, because the mean of its divisors is an integer number (291406752).
Almost surely, 22130130123 is an apocalyptic number.
2130130123 is a deficient number, since it is larger than the sum of its proper divisors (201123893).
2130130123 is a wasteful number, since it uses less digits than its factorization.
2130130123 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 622985.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 2130130123 is about 46153.3327399008. The cubic root of 2130130123 is about 1286.6745514012.
Adding to 2130130123 its reverse (3210310312), we get a palindrome (5340440435).
The spelling of 2130130123 in words is "two billion, one hundred thirty million, one hundred thirty thousand, one hundred twenty-three".
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