Base | Representation |
---|---|
bin | 1011000100110100… |
… | …0001011010101101 |
3 | 21200012012002010001 |
4 | 2301031001122231 |
5 | 22042040342114 |
6 | 1211001144301 |
7 | 133446630553 |
oct | 26115013255 |
9 | 7605162101 |
10 | 2972980909 |
11 | 1296196618 |
12 | 6ab78b091 |
13 | 384c14302 |
14 | 202bb1bd3 |
15 | 126008374 |
hex | b13416ad |
2972980909 has 2 divisors, whose sum is σ = 2972980910. Its totient is φ = 2972980908.
The previous prime is 2972980903. The next prime is 2972980921. The reversal of 2972980909 is 9090892792.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2915676009 + 57304900 = 53997^2 + 7570^2 .
It is a cyclic number.
It is not a de Polignac number, because 2972980909 - 217 = 2972849837 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 2972980909.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2972980903) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486490454 + 1486490455.
It is an arithmetic number, because the mean of its divisors is an integer number (1486490455).
Almost surely, 22972980909 is an apocalyptic number.
It is an amenable number.
2972980909 is a deficient number, since it is larger than the sum of its proper divisors (1).
2972980909 is an equidigital number, since it uses as much as digits as its factorization.
2972980909 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1469664, while the sum is 55.
The square root of 2972980909 is about 54525.0484548157. The cubic root of 2972980909 is about 1437.9066982239.
The spelling of 2972980909 in words is "two billion, nine hundred seventy-two million, nine hundred eighty thousand, nine hundred nine".
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