Base | Representation |
---|---|
bin | 1011010111101001000101 |
3 | 12121102100222 |
4 | 23113221011 |
5 | 1230333141 |
6 | 143514125 |
7 | 34222163 |
oct | 13275105 |
9 | 5542328 |
10 | 2980421 |
11 | 1756264 |
12 | bb8945 |
13 | 804782 |
14 | 578233 |
15 | 3dd14b |
hex | 2d7a45 |
2980421 has 2 divisors, whose sum is σ = 2980422. Its totient is φ = 2980420.
The previous prime is 2980403. The next prime is 2980427. The reversal of 2980421 is 1240892.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 2927521 + 52900 = 1711^2 + 230^2 .
It is a cyclic number.
It is not a de Polignac number, because 2980421 - 26 = 2980357 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2980427) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1490210 + 1490211.
It is an arithmetic number, because the mean of its divisors is an integer number (1490211).
22980421 is an apocalyptic number.
It is an amenable number.
2980421 is a deficient number, since it is larger than the sum of its proper divisors (1).
2980421 is an equidigital number, since it uses as much as digits as its factorization.
2980421 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1152, while the sum is 26.
The square root of 2980421 is about 1726.3895852327. The cubic root of 2980421 is about 143.9105186106.
The spelling of 2980421 in words is "two million, nine hundred eighty thousand, four hundred twenty-one".
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