Base | Representation |
---|---|
bin | 1001101100011… |
… | …1000101000000 |
3 | 2211111210211112 |
4 | 2123013011000 |
5 | 40402130222 |
6 | 4011302452 |
7 | 1002421046 |
oct | 233070500 |
9 | 84453745 |
10 | 40661312 |
11 | 20a5249a |
12 | 1174aa28 |
13 | 8568863 |
14 | 5586396 |
15 | 3882be2 |
hex | 26c7140 |
40661312 has 14 divisors (see below), whose sum is σ = 80687418. Its totient is φ = 20330624.
The previous prime is 40661293. The next prime is 40661317. The reversal of 40661312 is 21316604.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 22886656 + 17774656 = 4784^2 + 4216^2 .
It is a super-2 number, since 2×406613122 = 3306684587122688, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (40661317) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317603 + ... + 317730.
It is an arithmetic number, because the mean of its divisors is an integer number (5763387).
Almost surely, 240661312 is an apocalyptic number.
It is an amenable number.
40661312 is a deficient number, since it is larger than the sum of its proper divisors (40026106).
40661312 is an equidigital number, since it uses as much as digits as its factorization.
40661312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 635345 (or 635335 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 23.
The square root of 40661312 is about 6376.6223033829. The cubic root of 40661312 is about 343.8696098583.
Adding to 40661312 its reverse (21316604), we get a palindrome (61977916).
The spelling of 40661312 in words is "forty million, six hundred sixty-one thousand, three hundred twelve".
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