Base | Representation |
---|---|
bin | 101110000101… |
… | …011000011111 |
3 | 211201202120021 |
4 | 232011120133 |
5 | 11043040141 |
6 | 1110533011 |
7 | 204453421 |
oct | 56053037 |
9 | 24652507 |
10 | 12080671 |
11 | 6901429 |
12 | 4067167 |
13 | 266c935 |
14 | 1866811 |
15 | 10d96d1 |
hex | b8561f |
12080671 has 4 divisors (see below), whose sum is σ = 12205312. Its totient is φ = 11956032.
The previous prime is 12080657. The next prime is 12080699. The reversal of 12080671 is 17608021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17608021 = 157 ⋅112153.
It is a cyclic number.
It is not a de Polignac number, because 12080671 - 223 = 3692063 is a prime.
It is a super-2 number, since 2×120806712 = 291885223620482, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12080641) 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, 62175 + ... + 62368.
It is an arithmetic number, because the mean of its divisors is an integer number (3051328).
Almost surely, 212080671 is an apocalyptic number.
12080671 is a deficient number, since it is larger than the sum of its proper divisors (124641).
12080671 is an equidigital number, since it uses as much as digits as its factorization.
12080671 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124640.
The product of its (nonzero) digits is 672, while the sum is 25.
The square root of 12080671 is about 3475.7259673340. The cubic root of 12080671 is about 229.4547322840.
Adding to 12080671 its reverse (17608021), we get a palindrome (29688692).
The spelling of 12080671 in words is "twelve million, eighty thousand, six hundred seventy-one".
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