Base | Representation |
---|---|
bin | 110000011010… |
… | …001011100111 |
3 | 212212201121121 |
4 | 300122023213 |
5 | 11222041101 |
6 | 1131554411 |
7 | 212602345 |
oct | 60321347 |
9 | 25781547 |
10 | 12690151 |
11 | 7188331 |
12 | 42bba07 |
13 | 2824186 |
14 | 1984995 |
15 | 11aa0a1 |
hex | c1a2e7 |
12690151 has 2 divisors, whose sum is σ = 12690152. Its totient is φ = 12690150.
The previous prime is 12690121. The next prime is 12690179. The reversal of 12690151 is 15109621.
12690151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It is an emirp because it is prime and its reverse (15109621) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12690151 - 29 = 12689639 is a prime.
It is a super-2 number, since 2×126901512 = 322079864805602, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12690121) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6345075 + 6345076.
It is an arithmetic number, because the mean of its divisors is an integer number (6345076).
Almost surely, 212690151 is an apocalyptic number.
12690151 is a deficient number, since it is larger than the sum of its proper divisors (1).
12690151 is an equidigital number, since it uses as much as digits as its factorization.
12690151 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 540, while the sum is 25.
The square root of 12690151 is about 3562.3238202050. The cubic root of 12690151 is about 233.2503280718.
Adding to 12690151 its reverse (15109621), we get a palindrome (27799772).
The spelling of 12690151 in words is "twelve million, six hundred ninety thousand, one hundred fifty-one".
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