Base | Representation |
---|---|
bin | 1000001100101… |
… | …01101100001001 |
3 | 11210101220111010 |
4 | 10012111230021 |
5 | 120101124234 |
6 | 10453554133 |
7 | 1463353200 |
oct | 406255411 |
9 | 153356433 |
10 | 68770569 |
11 | 3590138a |
12 | 1b045949 |
13 | 1132b05a |
14 | 91c2237 |
15 | 60866e9 |
hex | 4195b09 |
68770569 has 12 divisors (see below), whose sum is σ = 106664784. Its totient is φ = 39297384.
The previous prime is 68770561. The next prime is 68770573. The reversal of 68770569 is 96507786.
It is not a de Polignac number, because 68770569 - 23 = 68770561 is a prime.
It is a super-2 number, since 2×687705692 = 9458782321167522, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (68770561) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233767 + ... + 234060.
It is an arithmetic number, because the mean of its divisors is an integer number (8888732).
Almost surely, 268770569 is an apocalyptic number.
It is an amenable number.
68770569 is a deficient number, since it is larger than the sum of its proper divisors (37894215).
68770569 is a wasteful number, since it uses less digits than its factorization.
68770569 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 467844 (or 467837 counting only the distinct ones).
The product of its (nonzero) digits is 635040, while the sum is 48.
The square root of 68770569 is about 8292.8022404975. The cubic root of 68770569 is about 409.7014860611.
The spelling of 68770569 in words is "sixty-eight million, seven hundred seventy thousand, five hundred sixty-nine".
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