Base | Representation |
---|---|
bin | 1000001110000… |
… | …01101010000100 |
3 | 11210202001112011 |
4 | 10013001222010 |
5 | 120122410120 |
6 | 10501504004 |
7 | 1465033222 |
oct | 407015204 |
9 | 153661464 |
10 | 68950660 |
11 | 35a14719 |
12 | 1b112004 |
13 | 1139200c |
14 | 922bb12 |
15 | 60bec5a |
hex | 41c1a84 |
68950660 has 12 divisors (see below), whose sum is σ = 144796428. Its totient is φ = 27580256.
The previous prime is 68950649. The next prime is 68950669. The reversal of 68950660 is 6605986.
It can be written as a sum of positive squares in 2 ways, for example, as 51494976 + 17455684 = 7176^2 + 4178^2 .
It is not an unprimeable number, because it can be changed into a prime (68950669) 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, 1723747 + ... + 1723786.
It is an arithmetic number, because the mean of its divisors is an integer number (12066369).
Almost surely, 268950660 is an apocalyptic number.
It is an amenable number.
68950660 is an abundant number, since it is smaller than the sum of its proper divisors (75845768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68950660 is a wasteful number, since it uses less digits than its factorization.
68950660 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3447542 (or 3447540 counting only the distinct ones).
The product of its (nonzero) digits is 77760, while the sum is 40.
The square root of 68950660 is about 8303.6534128057. The cubic root of 68950660 is about 410.0588057631.
The spelling of 68950660 in words is "sixty-eight million, nine hundred fifty thousand, six hundred sixty".
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