Base | Representation |
---|---|
bin | 110001001111… |
… | …001001011101 |
3 | 220021202012210 |
4 | 301033021131 |
5 | 11301011401 |
6 | 1140351033 |
7 | 214465014 |
oct | 61171135 |
9 | 26252183 |
10 | 12907101 |
11 | 7316329 |
12 | 43a5479 |
13 | 289bb4c |
14 | 19dda7b |
15 | 11ee4d6 |
hex | c4f25d |
12907101 has 4 divisors (see below), whose sum is σ = 17209472. Its totient is φ = 8604732.
The previous prime is 12907091. The next prime is 12907121. The reversal of 12907101 is 10170921.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10170921 = 3 ⋅3390307.
It is not a de Polignac number, because 12907101 - 29 = 12906589 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12907121) by changing a digit.
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 in 3 ways as a sum of consecutive naturals, for example, 2151181 + ... + 2151186.
It is an arithmetic number, because the mean of its divisors is an integer number (4302368).
Almost surely, 212907101 is an apocalyptic number.
It is an amenable number.
12907101 is a deficient number, since it is larger than the sum of its proper divisors (4302371).
12907101 is an equidigital number, since it uses as much as digits as its factorization.
12907101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4302370.
The product of its (nonzero) digits is 126, while the sum is 21.
The square root of 12907101 is about 3592.6454041556. The cubic root of 12907101 is about 234.5720353402.
The spelling of 12907101 in words is "twelve million, nine hundred seven thousand, one hundred one".
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