Base | Representation |
---|---|
bin | 10001001010111… |
… | …001101001110101 |
3 | 202002001111002221 |
4 | 101022321221311 |
5 | 1042221222021 |
6 | 44330202341 |
7 | 10065361663 |
oct | 2112715165 |
9 | 662044087 |
10 | 288070261 |
11 | 1386764a6 |
12 | 805833b1 |
13 | 478b1a9b |
14 | 2a389c33 |
15 | 1a454241 |
hex | 112b9a75 |
288070261 has 8 divisors (see below), whose sum is σ = 292118400. Its totient is φ = 284032320.
The previous prime is 288070231. The next prime is 288070283. The reversal of 288070261 is 162070882.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 288070261 - 215 = 288037493 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (288070231) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67530 + ... + 71668.
It is an arithmetic number, because the mean of its divisors is an integer number (36514800).
Almost surely, 2288070261 is an apocalyptic number.
It is an amenable number.
288070261 is a deficient number, since it is larger than the sum of its proper divisors (4048139).
288070261 is an equidigital number, since it uses as much as digits as its factorization.
288070261 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5099.
The product of its (nonzero) digits is 10752, while the sum is 34.
The square root of 288070261 is about 16972.6327068019. The cubic root of 288070261 is about 660.4391483546.
The spelling of 288070261 in words is "two hundred eighty-eight million, seventy thousand, two hundred sixty-one".
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