Base | Representation |
---|---|
bin | 1011000100110100… |
… | …0001011011111011 |
3 | 21200012012002012221 |
4 | 2301031001123323 |
5 | 22042040342422 |
6 | 1211001144511 |
7 | 133446631024 |
oct | 26115013373 |
9 | 7605162187 |
10 | 2972980987 |
11 | 1296196689 |
12 | 6ab78b137 |
13 | 384c14362 |
14 | 202bb1c4b |
15 | 1260083c7 |
hex | b13416fb |
2972980987 has 2 divisors, whose sum is σ = 2972980988. Its totient is φ = 2972980986.
The previous prime is 2972980963. The next prime is 2972981021. The reversal of 2972980987 is 7890892792.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2972980987 is a prime.
It is not a weakly prime, because it can be changed into another prime (2972980187) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486490493 + 1486490494.
It is an arithmetic number, because the mean of its divisors is an integer number (1486490494).
Almost surely, 22972980987 is an apocalyptic number.
2972980987 is a deficient number, since it is larger than the sum of its proper divisors (1).
2972980987 is an equidigital number, since it uses as much as digits as its factorization.
2972980987 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 9144576, while the sum is 61.
The square root of 2972980987 is about 54525.0491700833. The cubic root of 2972980987 is about 1437.9067107990.
The spelling of 2972980987 in words is "two billion, nine hundred seventy-two million, nine hundred eighty thousand, nine hundred eighty-seven".
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