Base | Representation |
---|---|
bin | 1011000100100001… |
… | …1110110101100001 |
3 | 21200002221121102211 |
4 | 2301020132311201 |
5 | 22041234300224 |
6 | 1210515442121 |
7 | 133433542540 |
oct | 26110366541 |
9 | 7602847384 |
10 | 2971790689 |
11 | 129555336a |
12 | 6ab2b6341 |
13 | 3848b863a |
14 | 202982157 |
15 | 125d70894 |
hex | b121ed61 |
2971790689 has 16 divisors (see below), whose sum is σ = 3720124800. Its totient is φ = 2314738944.
The previous prime is 2971790687. The next prime is 2971790749. The reversal of 2971790689 is 9860971792.
It is a happy number.
It is not a de Polignac number, because 2971790689 - 21 = 2971790687 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2971790687) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427119 + ... + 434020.
It is an arithmetic number, because the mean of its divisors is an integer number (232507800).
Almost surely, 22971790689 is an apocalyptic number.
2971790689 is a gapful number since it is divisible by the number (29) formed by its first and last digit.
It is an amenable number.
2971790689 is a deficient number, since it is larger than the sum of its proper divisors (748334111).
2971790689 is a wasteful number, since it uses less digits than its factorization.
2971790689 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 861192.
The product of its (nonzero) digits is 3429216, while the sum is 58.
The square root of 2971790689 is about 54514.1329289937. The cubic root of 2971790689 is about 1437.7147860432.
The spelling of 2971790689 in words is "two billion, nine hundred seventy-one million, seven hundred ninety thousand, six hundred eighty-nine".
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