Base | Representation |
---|---|
bin | 1011000000011111101000… |
… | …1010111100111011010111 |
3 | 1120212001021020122022001020 |
4 | 2300013322022330323113 |
5 | 3041244142213012311 |
6 | 41424032510332223 |
7 | 2356264411654251 |
oct | 260077212747327 |
9 | 46761236568036 |
10 | 12103120047831 |
11 | 39469a481502a |
12 | 14357ba4ba073 |
13 | 69a41c726477 |
14 | 2dbb19174cd1 |
15 | 15ec6b013c06 |
hex | b01fa2bced7 |
12103120047831 has 8 divisors (see below), whose sum is σ = 16138919393904. Its totient is φ = 8068033700160.
The previous prime is 12103120047769. The next prime is 12103120047841. The reversal of 12103120047831 is 13874002130121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12103120047831 - 243 = 3307027025623 is a prime.
It is a super-2 number, since 2×121031200478312 (a number of 27 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 12103120047792 and 12103120047801.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12103120047841) 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, 178209990 + ... + 178277891.
It is an arithmetic number, because the mean of its divisors is an integer number (2017364924238).
Almost surely, 212103120047831 is an apocalyptic number.
12103120047831 is a deficient number, since it is larger than the sum of its proper divisors (4035799346073).
12103120047831 is a wasteful number, since it uses less digits than its factorization.
12103120047831 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 356499201.
The product of its (nonzero) digits is 8064, while the sum is 33.
Adding to 12103120047831 its reverse (13874002130121), we get a palindrome (25977122177952).
The spelling of 12103120047831 in words is "twelve trillion, one hundred three billion, one hundred twenty million, forty-seven thousand, eight hundred thirty-one".
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