Base | Representation |
---|---|
bin | 1011010111100110100101 |
3 | 12121102011001 |
4 | 23113212211 |
5 | 1230332021 |
6 | 143513301 |
7 | 34221544 |
oct | 13274645 |
9 | 5542131 |
10 | 2980261 |
11 | 1756129 |
12 | bb8831 |
13 | 80468b |
14 | 57815b |
15 | 3dd091 |
hex | 2d79a5 |
2980261 has 2 divisors, whose sum is σ = 2980262. Its totient is φ = 2980260.
The previous prime is 2980231. The next prime is 2980291. The reversal of 2980261 is 1620892.
It is a happy number.
It is a balanced prime because it is at equal distance from previous prime (2980231) and next prime (2980291).
It can be written as a sum of positive squares in only one way, i.e., 2232036 + 748225 = 1494^2 + 865^2 .
It is a cyclic number.
It is not a de Polignac number, because 2980261 - 29 = 2979749 is a prime.
It is equal to p215479 and since 2980261 and 215479 have the same sum of digits, it is a Honaker prime.
It is a nialpdrome in base 12.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2980231) 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 as a sum of consecutive naturals, namely, 1490130 + 1490131.
It is an arithmetic number, because the mean of its divisors is an integer number (1490131).
22980261 is an apocalyptic number.
It is an amenable number.
2980261 is a deficient number, since it is larger than the sum of its proper divisors (1).
2980261 is an equidigital number, since it uses as much as digits as its factorization.
2980261 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1728, while the sum is 28.
The square root of 2980261 is about 1726.3432451283. The cubic root of 2980261 is about 143.9079433486.
The spelling of 2980261 in words is "two million, nine hundred eighty thousand, two hundred sixty-one".
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