Base | Representation |
---|---|
bin | 1011011001010110100101 |
3 | 12121202222112 |
4 | 23121112211 |
5 | 1231044204 |
6 | 144010405 |
7 | 34251464 |
oct | 13312645 |
9 | 5552875 |
10 | 2987429 |
11 | 1760555 |
12 | 1000a05 |
13 | 807a13 |
14 | 57a9db |
15 | 3e026e |
hex | 2d95a5 |
2987429 has 2 divisors, whose sum is σ = 2987430. Its totient is φ = 2987428.
The previous prime is 2987407. The next prime is 2987437. The reversal of 2987429 is 9247892.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2982529 + 4900 = 1727^2 + 70^2 .
It is a cyclic number.
It is not a de Polignac number, because 2987429 - 212 = 2983333 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2987449) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493714 + 1493715.
It is an arithmetic number, because the mean of its divisors is an integer number (1493715).
22987429 is an apocalyptic number.
It is an amenable number.
2987429 is a deficient number, since it is larger than the sum of its proper divisors (1).
2987429 is an equidigital number, since it uses as much as digits as its factorization.
2987429 is an evil number, because the sum of its binary digits is even.
The product of its digits is 72576, while the sum is 41.
The square root of 2987429 is about 1728.4180628540. The cubic root of 2987429 is about 144.0232247777.
The spelling of 2987429 in words is "two million, nine hundred eighty-seven thousand, four hundred twenty-nine".
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