Base | Representation |
---|---|
bin | 1001100101110… |
… | …1110100101001 |
3 | 2210200220102212 |
4 | 2121131310221 |
5 | 40244331220 |
6 | 3554134505 |
7 | 665644112 |
oct | 231356451 |
9 | 83626385 |
10 | 40230185 |
11 | 20788596 |
12 | 11581435 |
13 | 8447558 |
14 | 54b3209 |
15 | 37ea0c5 |
hex | 265dd29 |
40230185 has 8 divisors (see below), whose sum is σ = 48329160. Its totient is φ = 32148864.
The previous prime is 40230161. The next prime is 40230191. The reversal of 40230185 is 58103204.
It can be written as a sum of positive squares in 4 ways, for example, as 15389929 + 24840256 = 3923^2 + 4984^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 40230185 - 214 = 40213801 is a prime.
It is a super-3 number, since 3×402301853 (a number of 24 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 40230185.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 9059.
It is an arithmetic number, because the mean of its divisors is an integer number (6041145).
Almost surely, 240230185 is an apocalyptic number.
It is an amenable number.
40230185 is a deficient number, since it is larger than the sum of its proper divisors (8098975).
40230185 is a wasteful number, since it uses less digits than its factorization.
40230185 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8827.
The product of its (nonzero) digits is 960, while the sum is 23.
The square root of 40230185 is about 6342.7269372093. The cubic root of 40230185 is about 342.6499529859.
Adding to 40230185 its reverse (58103204), we get a palindrome (98333389).
The spelling of 40230185 in words is "forty million, two hundred thirty thousand, one hundred eighty-five".
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