Base | Representation |
---|---|
bin | 111111101001111010… |
… | …001010110001010001 |
3 | 20112102100102021211111 |
4 | 333221322022301101 |
5 | 2104434301133413 |
6 | 51222105013321 |
7 | 4636514430010 |
oct | 775172126121 |
9 | 215370367744 |
10 | 68348849233 |
11 | 26a94164065 |
12 | 112b5a84241 |
13 | 65a3342772 |
14 | 3445608a77 |
15 | 1ba06aad3d |
hex | fe9e8ac51 |
68348849233 has 4 divisors (see below), whose sum is σ = 78112970560. Its totient is φ = 58584727908.
The previous prime is 68348849227. The next prime is 68348849243. The reversal of 68348849233 is 33294884386.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a de Polignac number, because none of the positive numbers 2k-68348849233 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68348849243) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4882060653 + ... + 4882060666.
It is an arithmetic number, because the mean of its divisors is an integer number (19528242640).
Almost surely, 268348849233 is an apocalyptic number.
It is an amenable number.
68348849233 is a deficient number, since it is larger than the sum of its proper divisors (9764121327).
68348849233 is an equidigital number, since it uses as much as digits as its factorization.
68348849233 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9764121326.
The product of its digits is 23887872, while the sum is 58.
The spelling of 68348849233 in words is "sixty-eight billion, three hundred forty-eight million, eight hundred forty-nine thousand, two hundred thirty-three".
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