Base | Representation |
---|---|
bin | 1000001100110… |
… | …01101011101010 |
3 | 11210102201220210 |
4 | 10012121223222 |
5 | 120102140142 |
6 | 10454201550 |
7 | 1463451651 |
oct | 406315352 |
9 | 153381823 |
10 | 68786922 |
11 | 359126a6 |
12 | 1b0532b6 |
13 | 11335629 |
14 | 91c8198 |
15 | 608b49c |
hex | 4199aea |
68786922 has 16 divisors (see below), whose sum is σ = 141292512. Its totient is φ = 22309200.
The previous prime is 68786917. The next prime is 68786929. The reversal of 68786922 is 22968786.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (68786929) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154704 + ... + 155147.
It is an arithmetic number, because the mean of its divisors is an integer number (8830782).
Almost surely, 268786922 is an apocalyptic number.
68786922 is an abundant number, since it is smaller than the sum of its proper divisors (72505590).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68786922 is a wasteful number, since it uses less digits than its factorization.
68786922 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 309893.
The product of its digits is 580608, while the sum is 48.
The square root of 68786922 is about 8293.7881574103. The cubic root of 68786922 is about 409.7339578850.
The spelling of 68786922 in words is "sixty-eight million, seven hundred eighty-six thousand, nine hundred twenty-two".
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