Base | Representation |
---|---|
bin | 1000001111011… |
… | …10011111001001 |
3 | 11211002101101221 |
4 | 10013232133021 |
5 | 120144244111 |
6 | 10505442041 |
7 | 1466426446 |
oct | 407563711 |
9 | 154071357 |
10 | 69134281 |
11 | 3602a677 |
12 | 1b1a0321 |
13 | 11427778 |
14 | 92789cd |
15 | 6109371 |
hex | 41ee7c9 |
69134281 has 2 divisors, whose sum is σ = 69134282. Its totient is φ = 69134280.
The previous prime is 69134279. The next prime is 69134311. The reversal of 69134281 is 18243196.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 42042256 + 27092025 = 6484^2 + 5205^2 .
It is a cyclic number.
It is not a de Polignac number, because 69134281 - 21 = 69134279 is a prime.
It is a super-2 number, since 2×691342812 = 9559097618773922, which contains 22 as substring.
Together with 69134279, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (69134201) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34567140 + 34567141.
It is an arithmetic number, because the mean of its divisors is an integer number (34567141).
Almost surely, 269134281 is an apocalyptic number.
It is an amenable number.
69134281 is a deficient number, since it is larger than the sum of its proper divisors (1).
69134281 is an equidigital number, since it uses as much as digits as its factorization.
69134281 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 10368, while the sum is 34.
The square root of 69134281 is about 8314.7027006382. The cubic root of 69134281 is about 410.4224893377.
The spelling of 69134281 in words is "sixty-nine million, one hundred thirty-four thousand, two hundred eighty-one".
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